Science and Health: Chapter 4 - Test (41-50)

41. During the months of July to September, we experience heavy rains. This statement describes our _____________.

a. weather
b. climate
c. summer
d. geographic location

42. Short dry season occurs in areas which are protected from the northeast monsoon but open to the Southeast Monsoon. An example of this area is ____________.

a. Samar
b. Quezon
c. Cagayan Valley
d. Batangas

43. When peopletake corals out of the sea, they ____________.

a. Help clean the sea.
b. destroy the shelter of small fishes]
c. pollute the sea
d. protect the fishes

44. Which of the following shows the beneficial effect of common materials used at home?

a. Soap and detergents create foams in rivers and streams.
b. Pesticides kill even non-target species or organisms.
c. Preservatives help prevent foods from decaying or decomposing.
d. Food additives, including preservatives, cause health problems.

45. In which of the following cases is work in the scientific sense being done?

a. a girl doing her homework
b. a girl sitting inside a car
c. a boy holding a book
d. a stone rolling downhill

46. Which of these causes the seasons of the earth?

a. The distance of the earth as it revolves around the sun.
b. The clockwise revolution of the earth around the sun.
c. The counterclockwise revolution of the earth around the sun.
d. The earth’s revolution and the tilting of its axis away or towards the sun.

47. Which of the following statement is true.

a. Energy can be created.
b. Energy can be destroyed.
c. Energy can be transformed to another form.
d. Energy can increase in amount.

48. Which is a product of respiration?

a. Oxygen
b. carbon dioxide and water
c. nitrogen
d. both a and b

49. \this is the largest part of the brain and controls mental processes such as thinking, memorizing and decision making.

a. spinal cord
b. cerebrum’
c. cerebellum
d. medulla oblongata

50. It is the chemical reaction of food caused by the action of yeasts and bacteria on food?

a. combustion
b. mixture
c. combination
d. fermentation

Science and Health: Chapter 4 - Test (31-40)

31. The theory about origin of the universe which states that the universe began with a tremendous explosion.
a. Steady State Theory
b. Divine Theory
c. Theory of Ecolution
d. Big Bang Theory

32. What Presidential Decree that requires all couples planning to marry to receive counseling on family planning?
a. P.D. 695
b. P.D. 965
c. P.D. 995
d. P.D. 569

33. What do you call the winds at the equator that hardly move at all and are usually hot?
a. doldrums
b. horse latitudes
c. wind system
d. polar easterlilies

34. Why is heat important?
a. It checks the flow of blood.
b. It stops the flow of blood
c. It makes the blood move throughout the body.
d. It occupies the chest cavity.

35. Why are thinner and turpentine added to paints?
a. To make paints easy to spread on surfaces.
b. To give color to paints.
c. To remove molds in paints.
d. To hold pigment particles together.

36. Why are clams and mussels banned from consumption when red tide occurs?
a. Because they have no nutritional value.
b. because they multiply very fast.
c. Because they can cause paralysis or death when eaten.
d. Both A and C

37. What is the magnitude of an earthquake that causes much damage of the land?
a. magniture 6
b. magnitude 7
c. magnitude 8
d. magnitude 9 and over

38. In which galaxy is the solar system found?
a. andromeda galaxy
b. milky way
c. large Magellan cloud
d. small Magellan cloud

39. When soil is washed away by floods or rainwater, this process is called ______.
a. water shortage
b. cultivation
c. reforestation
d. erosion

40. Aerosols pollute the air and destroy ozone layer by releasing ___________.
a. smoke
b. oxygen
c. dust
d. chlorofluorocarbons

Science and Health: Chapter 4 - Test (21-30)

21. What is the fatty food substance that hardens or clogs the arteries?
a. margarine
b. cholesterol
c. digested food
d. protein


22. Which of the following statement is NOT true?
a. Stars can be used in finding directions.
b. Stars can be used in predicting weather.
c. Stars can be used in telling distance between planets?
e. stars ca be used in telling time.

23. Which is an example of chemically biodegradable plastic.
a. plastic chair
b. plastic cover
c. plastic capsule
d. plastic bag

24. Why does tsunami occur?
a. it is caused by an earthquake in a plain.
b. It is caused by big typhoon in the land.
c. It is caused by an earthquake under the sea.
d. Both A and C

25. The presence of enlarged lymph node indicates ______________.
a. an infection
b. a recovery from an infection
c. you are in good shape
d. you are very sick

26. An additive that gives red color to meat products.
a. sodium nitrates
b. sodium chloride
c. sodium glutamate
d. citric acid

27. The ability of some animals to give off light is called _____________.
a. incandescent lamp
b. luminescence
c. translucent
d. bioluminescence

28. Most carbon monoxide comes from _______________.
a. leather industries
b. automobile exhaust
c. cigarettes
d. incinerator

29. When the driver says his car is traveling at 80 kms/hour, what is he describing?
a. inertia
b. gravitation
c. velocity
d. acceleration

30. A force that keeps us from sliding when we walk. It also prevents the block from moving when force is applied on it?
a. motion
b. force
c. friction
d. pressure

Science and Health: Chapter 4 - Test (11-20)

11. Why does the climate differ in the different parts of the Philippines?

a. This is due to the hot weather in the Philippines. b. Because the Philippines is in the tropics. c. Because of the different latitudes, the bodies of water around it and the special winds that pass through it. d. This is due to the hot and cold weather in the Philippines.

12., \why do some stars appear brighter than the others?

f. Bright stars are the big ones .g. Bright stars are those that are big as the sun. h. Bright stars give off more light or are nearest toe the earth than the others.. i. None of the above

13. Which of the following statements will illustrate how big the universe is?

a. The universe is composed of ten planets. b. If you are in space looking for our sun, it would just like be looking for particular grain of san from all the particles of sand on earth. c. The universe is like a group of white clouds. d. The universe is composed of two galaxies.

14. Why is vaccination important?

a. It stimulates the immune system to produce antibodies. b. It kills the harmful organism in the body. c. It stimulates the production of lymph nodes. d. It enables the immune system to recognize all kinds of diseases.

15. A substance that cannot be broken down into simplest form is called an element.

a. water b. iron c. sugar d. carbon

16. Which of the following tells about the magnitude of an earthquake?

a. amount of energy released b. duration of shaking c. distance from epicenter d. depth of focus

17. What alloy is formed when iron and brass is combined?

a. brass b. aluminum c. steel d. copper

18. What kind of season has the most leaves falling from trees?

a. summer b. spring c. winter d. autumn

19. Which government agency monitors and issues warnings on volcanic activites?

a. PAGASA b. BFM c. DFA d. PHIVOLCS

20. How will you describes the heart?

a. It is an inflexible organ b. It is a hollow muscular organ. c. It works like a pump. d. both b and c

Science and Health: Chapter 4 - Test (1-10)

Directions: Read each question carefully. Then pick out the letter of the correct answer and write it on your paper.

1. What is the continuous and circular flow of chemicals or materials between organism and their environment to maintain balance in nature?a. Geophysical cycleb. Biogeochemical cyclec. Geochemical cycle]d. Food cyclee.

2.A coral reef, a forest and pond systems are examples of _______________.f. ecological nicheg. populationh. food chain]i. Ecosystemj.

3. Which of the following government program is way of coping excessive population growth? a. Reforestation Program b. Infrastructure Program c. Family Planning Program 4. Educational Program

4. Which of the following is a solution? a. cup of coffee with milk b. salt and sand c. sugar d. gravel and sand

5. A book on the table possesses __________ energy/ a. kinetic b. potential c. mechanical d. electrical

6. When you whirl a cup of water in a net in a circular direction perpendicular to the ground, the water remained in the cup even at the top of the circle when the mouth was pointed downwards. What was the force that kept the water in the cup?a. The centrifugal force created was so great that the downward pull of gravity was overcome.b. The centripetal force created was so great that the downward pull of gravity was overcome.c. \the centrifugal force created was so great that the upward push of the gravity overcome.d. None of the above

7. Gasoline is burned to run a motorcycle. The energy conversion is from ________ energy to ___________ energy to ____________ energy.
a. heat;mechanical;chemicalb. heat;chemical;mechanicalc. chemical;mechanical;heatd. chemical;heat;mechanicale.

8. When you broil meat, the heat is transferred by means of radiation. When you fry, the heat travels from the stove to the frying pan by ______________. a. convection b. conduction c. radiation d. none of the above

9. The high temperature of the earth’s interior is evident because of the heat_________. a. felt during the day b. coming from volcanoes c. coming from hot springs d. both b and c

10. An instrument used by navigators to find latitude of the earth. a. spectroscope b. compass c. sextant d. telescope

SCIENCE AND HEALTH 6: III (Part 15-30)

16. Why do other countries in the temperate zone experience four seasons?
a. because of the earth’s inclination
b. because of the earth’s revolution
c. because of the earth’s rotation
d. both a and b

17. Which season is similar in both hemisphere?
a. autumn
b. spring
c. summer
d. winter

18. What factors contribute to the amount of rainfall in a particular place?receives?
a. location of a place
b. kind of wind passing over it
c. type of people living on it
d. both a and b
19. How is the composition of stars determined?
a. by using a telescope
b. by using a spectroscope
c. by using a parallax
d. both a and b

20. Which is the most important use of radio telescope?
a. It can be used to study objects too far away to be seen with ordinary telescope.
b. It can take photographs of heavenly bodies.
c. It can be used to view a heavenly body over a long period of time.
d. It can be used to find out what chemical elements are present in the planets
and stars.

21. Why is our sun brighter than Sirius?
a. because the sun is closer to us than Sirius.
b. because the sun is bigger than Sirius.
c. because the sun is hotter than Sirius.

22. Which of these stars is farthest from Earth?
a.Sun
b. Sirius
c. Alpha Centauri
d. Promixa Centauri

23. What is constellation?
a. an exploding star
b. a group of stars forming some patterns
c. a huge ball of hot burning gases
d. a long-tailed heavenly body made up of frozen gases

24.which of the following explains why there is day and night?
a. The earth rotates on its axis every 24 hours, causing day and night.
b. The moon rotates around the sun, causing day and night.
c. The earth revolves around the sun every 24 hours, causing day and night
d. The moon revolves around the sun, causing day and night

25. If a man would walk for three hours on an open area during a sunny day at high noon and without a hat or umbrella, what will likely happen to him?
a. He will chill and will feel body pain.
b. His eyes will be swollen and will be irritated.
c. He will catch cold, will have fever, then a flu.
d. He will perspire a lot and will get a sunburn.

26. The first man to land on the moon carried by Apollo 11 which took off on July 20, 1969.
a. Edwin Aldrin Jr
b. Neil Armstrong
c. Michael Collins
d. Vostok I

27. The first Russian cosmonaut, the first man in space aboard Vostok I
a. Scott Carpenter
b. Yuri Gagasin
c. Sputnik II
d. Sputnik I

28. What type of galaxy is the Milky Way?
a. Regular
b. Irregular
c. Elliptical
d. Spiral

29. What do you call a scientist who studies about stars?
a. Geologist
b. Paleontologist
c. Astronomers
d. Agronomist

30. What is an observatory?
a. a building that houses a big telescope
b. a laboratory in space
c.. a house for scientist
d. a camera that takes pictures of stars

SCIENCE AND HEALTH 6: III (Part 1-15)

Direction: Read each question carefully and write the letter of the correct answer on your answer sheet.

1. Which theory of the origin of the universe is believed by most scientists?
a. Big Bang Theory c. Big Crunch theory
b. Pulsating Theory d. Steady State Theory

2. Which of the following is a constellation?
a. North start b. Orion c. Sirius d. Betelgeuse

3. Which refers to the brightness of the stars we see?
a. apparent magnitude c. total brightness
b. Absolute magnitude d. intensity

4. In which galaxy is the solar system found?
a. Andromeda Galaxy c. Large Magellanic Cloud
b. Milky Way d. Small Magellanic Cloud

5. Why do winds deflect instead of moving straight to the north or to the south?
a. the earth revolves c. the winds move fast
b. the earth rotates d. the winds move slowly

6. Our sun is one of the many stars in the sky. Compared with other stars, it is only average in size. However, it appears much larger than the others. Why?
a. The sun is brighter than the stars.
b. The sun is closest to earth than the other stars.
c. The sun gives more light than the other stars.

7. Stars appear different in brightness because
a. they give off more light than the others.
b. they are farther than the others
c. they give off less light than the others.
d. they are covered by the clouds.

8. Why do astronauts wear pressure suits?
a. to prevent them from getting hurt
b. to enable them to breathe freely and comfortably.
c. to keep the same air pressure around the body
d. to maintain the pressure inside their bodies.

9. Which of the following describes weather?
a. it tells how hot or cold the air is.
b. It gives the direction of the wind.
c. it measures the speed of the wind.
d. it tells the conditions and changes of the air around us.
10. What is the basis of Philippine climate?
a. speed of the wind c. presence of mountain
b. amount of rainfall d. number of seas

11. Which of these wind systems reach the Philippines?
a. prevailing waterlines c. horse latitudes
b. doldrums d. trade winds

12. Why do sailors avoid the doldrums?
a. because their ships would just stay in a particular area and would not move.
b. because their ships would sail so fast that they may hit the rocks.
c. because their ships would hit polar icebergs
d. both a and c.

13. What is the significance of the Coriolis effect?
a. The winds move from the poles toward the equator to blowing sideward.
b. The trade winds meet together in the inter tropical convergence zone.
c. The wind would blow toward the poles.
d. both a and c.

14. Why does the Philippines have only twos seasons?
a. because it is located in the temperature zone.
b. because of its latitude
c. because it has many mountains
d. because it is surrounded by seas.

15. Which causes heavy rains from June to November?
a. polar easterlies
b. southwest monsoon
c. northeast monsoon
d.horse latitude

SCIENCE AND HEALTH 6: Differentiate the following

46. Convection from conduction
47. Element from compound
48. Kinetic energy from potential energy
49. Nuclear fission from nuclear fusion
50. Mechanical energy from chemical energy.

SCIENCE AND HEALTH 6: Missing compound and formula

Name or supply the missing compound and formula.

31. NaNO2 - ________________ 36. Calcium chloride - _______________
32. CaCO3- ________________ 37. Sodium Chloride - _______________
33. NH3 - ________________ 38. Sucrose - _______________
34. SiO2 - ________________ 39. Baking soda - _______________
35. CH3 COOH - _____________ 40. Acetic acid - _______________

41-45 Modified true or false. Write T if the statement is true and F if it is not, then change the underlined word in the correct form.
41. In conduction heat travels from the sun in stream waves.
42. Heat is always produced when energy transformation occurs.
43. Additives are the materials used to prevent food spoilage.
44. Kinetic energy is considered as the energy in motion.
45.Elements are the simplest substances; they cannot be broken down into simpler substance.

SCIENCE AND HEALTH 6: (Part 15-30)

16. Why is acid rain harmful?
a. because it can bring lots of rain
b. because it can make the surrounding hot
c. because it can contaminate water supply and corrode some materials
d. because it can bring about drought
17. What energy is associated with atomic bombs?
a. chemical energy b. kinetic energy c. light energy d. nuclear energy
18. Which of the following does NOT contribute to energy conservation?
a. Turn off the lights and electric fans as you leave your room.
b. Ride to school with your brothers and sisters in one car.
c. Close all windows as you turn on the air-conditioning unit.
d. Let the water flow as you brush your teeth.
19. Gasoline and rocket fuel store in considered as
a. electrical energy c. mechanical energy
b. chemical energy d. radiant energy
20. Which of the following statement is not true?
a. The total amount of energy remains constant.
b. Energy cannot be created but not destroyed.
c. Energy can be created but not destroyed.
d. Energy can be transformed.
21. Which of the following is true for falling object?
a. Its kinetic energy increases as it falls.
b. Its potential energy increases as it falls.
c. It does not have any energy.
d. Its kinetic energy decreases as it falls.
22. Lighting a match involves all the following energies except __________.
a. mechanical b. chemical c. radiant d. nuclear
23. The ultimate source of energy is the _____________?
a. star b. sun c. fire d. moon
24. Which of the following practices will conserve electricity?
a. Switching on appliances while sleeping.
b. Use of incandescent bulbs for illumination.
c. Turning off all appliances when not in use.
d. Ironing clothes piece-by-piece everyday.
25. A generator has an energy transformation from ___________?
a. heat energy to electrical energy
b. chemical energy to heat energy
c. chemical energy to mechanical energy
d. electrical energy to chemical energy
26. It is an electric energy generated through kinetic energy of a moving water such as that of waterfall or in a dam.
a. hydroelectric energy c. heat energy
b. tidal energy d. chemical energy
27. What is the energy change when you turn on a washing machine?
a. electrical energy to chemical energy
b. chemical energy to mechanical energy
c. chemical energy to electrical energy
d. electrical energy to mechanical energy
28. It is a substance that is made up of two or more elements combined chemically.
a. compound b. element c. complex d. molecules
29. Which of the following particles move freely around the molecules?
a. electrons b. neutrons c. protons d. none of these
30. Which of the following is an example of an element?
a. alcohol b. sodium chloride c. carbon d. kerosene

SCIENCE AND HEALTH 6: (Part 1-15)

Direction: Read each sentence correctly. Write the letter of the correct answer.

1. One of the activities used in processing meat is sugar. Why is sugar used as an additive?
a. Sugar will enhance the appearance of meat.
b. Sugar will add to the nutritive value of meat.
c. Sugar will enhance the taste of meat.
d. Sugar will add the color of the meat.
2. Most of these materials are for maintaining cleanliness at home. Which may be omitted from the list.
a. soap b. detergent c. floor wax d. Lysol
3. Which of the following pairs should NOT be red together in the same shelf at home?
a. Lysol and soy sauce c. Aspirin and Tylenol
b. Fish sauce and vinegar d. soap and shampoo
4. If you like to store some vinegar, what container will you use?
a. earthen jar b. plastic bottle c. metal jar d. clay pot
5. In keeping And storing materials at home, medicines should be placed away from the insecticides. Why?
a. to prevent the materials from expiring
b. to arrange the materials in an orderly manner
c. to prevent insects from entering cabinet
d. to prevent people from using them in the wrong way
6. What danger may arise in the use of pesticides.
a. They can cause respiratory diseases.
b. They can kill all the insects.
c. They cause production of acid rain.
d. They can harm the environment.
7. What are synthetic products?
a. products made from plastics
b. products made from manufactured products instead of natural materials
c. products that have natural properties
d. products made from raw materials
8. Waste that accumulates may _____________?
a. Speeds up the decomposition of non-biodegradable wastes.
b. Become breeding places of pets
c. Allow the flow of rainwater run offs
d. Causes loss of the top oil
9. How the heat transfers in solid material?
a. by waves b. by conduction c. by convection d. by radiation
10. Which of the following does not release heat to the environment?
a. boiling water c. burning of paper
b. turning on the radio d. all of the above
11. Which method of heat transfer involves the movement of heated part of the liquid or gas? a. insulators b. conduction c. convection
12. Silver is better conductor of electricity than copper. But copper is the usual choice to manufacturing electrical wire. Why is that so?
a. Silver is in great demand for jewelry.
b. Silver is also used fro coins.
c. Copper wire is safer than silver wire.
d. Copper is less expensive than silver.
13. Which of the following is the best conductor of heat?
a. wood b. human body c. glass d. metal
14. What is an example of good conductor?
a. plastic b. wood c. metal d. glass
15. What is technology?
a. The science materials that are used by people.
b. The technical assistance
c. The scientific products used in the market
d. The ways people use the materials they discover or invent

SCIENCE AND HEALTH: Test Questions Part 2

Direction: Read each sentence carefully and write the letter of the correct answer.

1. The speed of the earth’s revolution is __________.
a. 356 days b. 365 ¼ days c. 356 ¼ days d. 365 days

2. Which of the following best describes the velocity of a moving object?
a. 60 km/hour b. 60 km/seconds c. 60 km/hour going north d. none of the above

3. Which of the following is not necessary when you want to know the speed of the moving object?
a. the force applied to move the object c. the time it took the object to travel
b. the distance traveled by the object d. both a and b

4. What force an object follow a curved path where in a circular motion?
a. centripetal force c. centrifugal force
b. gravitational force ` d. unbalanced force

5. When can you say that the object is in motion?
a. when it has changed its position from a reference point
b. when it has changed its size and texture
c. when it has changed its size and color
d. when it has magnetized
6. What law of motion is illustrated when one rides in a moving vehicle then the driver steps on the brake pedal and the passengers tend to move forward?
a. law of Inertia c. law of Acceleration
b. Law of Momentum d. law of Interaction

7. When can you say that the object has moved?
a. when its distance from reference point has changed
b. when the direction of an object from reference point has changed
c. when it has changed its position in relation to a reference point
d. all of the above

8. Which of the following will prove that running water has force?
a. objects are destroyed by water c. objects are carried away by water
b. objects that sink in water d. none of the above

9. Where can you find friction?
a. over a smooth surface c. over a rough surface
b. over a soapy surface d. over a slippery surface

10. Which of these can change the direction of an object?
a. position b. distance c. reference point d. all of these

11. When do we exert the least force? When we use __________.
a. two wheels b. one wheel c. four wheels d. no wheels

12. How does gravity move things?
a. by pushing them upward c. by moving them left and right
b. by pulling them toward the ground d. by tossing them up and down

13. Which home appliances demonstrated centripetal force?
a. gas stove b. washing machine c. television set d. radio

14. Which of the following examples shows speed?
a. 10 km. b. 10 seconds c. 10 km/second d. 10 km/second-north

15. A truck traveled 240 km in 6 hours. What was its average speed?
a. 70 kph b. 60 kph c. 50 kph d. 40 kph

16. Which of the following can force do?
a. start motion b. change direction of motion c. stop motion d. all of these

17. A big truck and a jeepney are both traveling at a speed of 60 kph. Which would be easier to stop and why?
a. The jeepney, because it has only four wheels.
b. The truck, because it has more and bigger wheels.

c. The jeepney, because it has less mass.
d. The truck, because the gravity helps to stop

18. Why does a car travel faster when going down a mountain than when going up?
a. it is moving toward gravity c. it is moving against gravity
b. it is being pushed by the wind d. it is being pulled by the wind

19. An instrument used to measure or record tremors of an earthquake.
a. thermometer b. barometer c. seismograph d. hygrometer

20. Why is it easier to go down the stairs than to go up the stairs?
a. your body is heavy c. because of friction
b. your body is exerting more force d. because of force of gravity

21. Which is the best thing to do in case of an earthquake?
a. stay inside the building c. stay under a tree
b. stay in an open field or space d. run home as fast as you can

22. Which government agency monitors and issue warnings on volcanic eruptions?
a. PAGASA b. DENR c. BFM d. PHIVOLCS

23. A volcano that has erupted within recent history but may erupt again is said to be _____
a. active b. extinct c. in active d. quiet

24. The _______ scale measures the degree of shaking of the earth using the intensity.
a. Rossi-Forrel scale c. weighing
b. Richer Magnitude scale d. Modified and Mercalli

25. Which is true about volcanic eruption?
a. most of the gas that goes out to the volcano is carbon dioxide,
b. When heavy rain accompanies an eruption, a mudflow may occur.
c. magma is pushed from the earth’s interior to the surface because of a building of temperature in the mantle.
d. none of the above

26. Earthquakes has three qualification excluding ___________?
a. volcanic earthquakes c. gravitational earthquakes
b. landslips d. tectonic earthquakes

27. What do you call that whirling movement of the wind in the counter clockwise direction, sometimes at the rate of 300 miles per hour. It is the most dangerous of all the wind.
a. tsunami b. monsoon c. cyclone d. tornado

28. _______ does not belong to the group of high lands on earth.
a. mountain b. volcanoes c. plateaus d. valleys

29. Which of the following example shows speed?
a. 10 km b. 10 seconds c. 10 km/second d. 10 km/second north

30. Most earthquakes and volcanic eruptions occur in the ___________.
a. Pacific Ring of Fire c. North America Plate
b. Eurasean-Melanesian Belt d. Arctic

31. Why is the wind cold when the Philippines experiences Northeast monsoon from November to February?
a. because air rises
b. because winds come from a place where it is winter
c. because winds come from equator
d. because winds come from ocean

32. We experience different seasons in a year because ____________.
a. of the rotation of the earth
b. the earth revolves around the sun
c. of the different pressures in the atmospheres
d. it follows an orbit as it rotates

33. What causes seasons?
a. revolution of the sun c. revolution of the earth
b. revolution of the moon d. revolution of the clouds

34. To be safe during typhoon, one should ____________.
a. stay inside the house c. stand near the electric post
b. seek shelter under the tree d. run outside the house

35. How does unequal heating of land and water affect the air around us?
a. cloud formation c. air movement
b. good weather d. the air become humid

36. Which of the following weather condition could be observed without using weather instrument?
a. wind speed b. cloudiness c. temperature d. air pressure

37. During daytime the wind blows from _____________.
a. the sea to the land c. the land to the sea
b. the sea to the sea d. the land to the mountain

38. if you are lost in the middle of the ocean, the best thing to use to find your direction is the __________.
a. gun b. compass c. mirror d. binocular

39. The outermost layer of the earth.
a. core b. clouds c. crust d. mantle
40. What is the meaning of fair weather?
a. A few clouds are present but there will be no rain
b. These will be heavy rain and strong winds.
c. Clouds are present and may produce rain.
d. It will rain during the day.

41. The ocean the largest body of water on earth covers almost ______ of its surface.
a. 11% b. 17% c. 71% d. 77%

42. It is the hottest layer of the earth.
a. crust b. core c. mantle d. crustal plate

43. What can change the features of land?
a. rain b. thunder c. earthquake d. lightning

44. Which of the following best describes a landslide?
a. loose rocks falling over a mountain
b. giant waves in the ocean
c. some parts of the ground open up
d. both a and b

45. What is the effect of the southwest monsoon in the Philippines?
a. cold wind but little rain c. warm wind and dry season
b. warm wind and thunderstorms d. heavy rains and typhoons

46. When a tsunami occurs, which of the following places may be affected?
a. plateau b. valley c. mountain d. coastal area

47. What is the main cause of weather changes?
a. water cycle c. the earth’s ocean
b. the movement of air d. unequal heating of the earth’s surface

48. Which of the following natural phenomena takes the longest period of time?
a. weather b. climate c. monsoon d season

49. Why does the earth’s crust move?
a. The earth’s crust is divided into parts, which are separated by water.
b. The water part of the earth is bigger than the land part.
c. It lies on the liquid part of the mantle, which is always in motion.
d. It lies just above the earth’s core, which is very hot.

50. Why there is magma in the interior of the earth?
a. The interior of the earth is cool, so racks harden.
b. The interior of the earth is too hot, so rocks melt.
c. There are different kinds of rocks in the interior of the earth.
d. The presence of the earth melts the rocks.

SCIENCE AND HEALTH: Test Questions 5

V. Match Column A with Column B.

A B
1. Generator a. Energy produced by all kinds of machines

2. Geothermal energy b. Energy in motion
A B
3. Kinetic energy c. A compound of iron and oxygen

4. Rust d. Energy stored in matter

5. Photosynthesis e. Good conductors of heat

6. Chemical Energy f. Highness or lowness of a tons

7. Metals g. A process which transforms radiant energy from the sun to chemical energy

8. Mechanical Energy h. Device that transforms mechanical energy to
Electrical energy

9. Pitch i. Heat transferred from the earth’s molten core to underground deposits of water lying near the earth’s surface

10. Composting j. A process of turning biodegradable materials into odorless and safe organic fertilizer

SCIENCE AND HEALTH: Test Questions 4

IV. Explain the following (2 points each number)

1. In what ways are music and noise similar? How do they differ?
2. What is the ECHO, how it is produced?
3. How is static electricity different from current electricity?
4. Why is it that our shadows are different in the morning, noontime and afternoon?
5. Why is energy important to all living things?

SCIENCE AND HEALTH: Test Questions 3

III. Enumerate
Three (3) methods of heat transfer.
4. ______________________
5. ______________________
6. ______________________

Two (2) kinds of mirrors according to the shape of their surfaces.
7. ______________________
8. ______________________

Two (2) classification of waste.
9. ______________________
10. ______________________

SCIENCE AND HEALTH: Test Questions 2

II. Identify the following:

1. ______________ is the bending of light as it passes one medium to another.
2. ______________ are the materials used in auditorium and movie houses to absorb unwanted noise.
3. ______________ a substance made up of two or more chemically joined elements.
4. ______________ is a reduction or elimination of unnecessary energy used and wasted.
5. ______________ is anything that occupies space and has weight.
6. ______________ is a reflected sound wave.
7. ______________ a change in matter that occurs without a change in composition.
8. ______________ is the bouncing back of light rays.
9. ______________ is the ability to do work.
10. ______________ is the smallest particle of a substance.

Enumerate and describe each.

Give three (3) states of matter.
1. _______________________
2. _______________________
3. _______________________

SCIENCE AND HEALTH: Test Questions

Pick out the letter of the correct answer.

1. Which shows that energy is being transformed?
a. A candle resting on a table c. Water in a closed dam
b. A swinging pendulum d. A ream of pare inside a box

2. What energy transformation occurs in a geothermal energy?
a. Heat to electrical energy c. Heat to light energy
b. Chemical to heat energy d. chemical to mechanical energy

3. A gas that serves as the protective layer fro the incoming radiation from the sun. a. ozone b. atmosphere c. hydrogen d. oxygen

4. When you rub a plastic comb against your hair, _______ is produced.
a. neutron c. static electricity
b. electrical charge d. current electricity

5. Which is not a property of matter?
a. Density b. Brittleness c. Volume d. Frequency

6. Energy do to the objects’ motion is called ______________.
a. solar energy b. potential energy c. kinetic energy d. chemical energy

7. What electrical connection will continue to work even if you take away one bulb? A. parallel b. close c. series d. open

8. What chemical is added to steel in order to produce stainless steel?
a. magnesium b. boric c. chromium d. aluminum

9. A substance which cannot be broken down by ordinary chemical means.
a. mixture b, solution c. element d. compound

10. When one uses exhaust fan, what kind of energy transfer is being demonstrated?
a. conduction b. nuclear c. radiation d. convection

Chemical change: Follow-up Questions

I. Objective
Observe that no new material is formed when a chemical change occurs.
Observe that the product of a chemical change cannot be brought to its original form.
Show examples of chemical change.

II. Subject Matter
Chemical Change
Science Ideas: Sometimes when a new material changes it doesn’t look like the old material. Its properties are diff. This kind of change is called a chemical change.
New materials are formed in chemical reaction. During chemical reaction. The properties of the new material are diff. from those of the original material.
Some chemical reactions take place rapidly. Other chemical reactions take place more slowly.
Science Processes: Observing, Inferring
Materials:
New words: Chemical change, chemical reaction

III. Suggested Activities:
A. Motivation
Have pupils observe when a candle burns. Have them list down the changes observed other than the physical change.
B. Presentation
1. Do the find out activity
-Identifying conditions when a chemical change occurs
-Identifying the products of chemical change
-Observing new material formed in chemical change
-Observing the product of a chemical change
2. Identify the conditions when chemical change occurs.
3. Identify the product of chemical change.
4. Observe that new material is formed when a chemical change occurs/that the product of a chemical change cannot be brought back to its original form.
5. Generalization
Ask these questions:
a. What is a chemical change?
b. What are the conditions when chemical change occurs?
c. Does a chemical change form a new material?
d. Can the product of a chemical change be brought back to its original form?
C. Application
Give ten examples of chemical change
D. Valuing
E. Evaluation
F. Extension

Chemical change: Physical change in the material

I. Objective
Observe changes where no new material is formed.

II. Subject Matter
Observe changes where no new material is formed.
Science Ideas: In most physical change, the shape and size of the materials changed. The addition and removal of heat causes physical change in the material. Physical change does not change atoms or molecules.
Science Processes: Observing, describing
Materials:

III. Suggested Activities
A. Motivation
Ask the pupils to name the changes they have observed in themselves. Ask them if these changes have changed them into new individuals.

B. Presentation
1. Do the Find out Activity:
-Observing physical change
-Identifying conditions when physical change occurs
-Identifying the products of physical change
2. Describe what they have observed.
3. Identify conditions when physical change occurs.
4. Identify the products of physical change.
5. Generalization
Ask these questions:
-what is physical change?
-in what conditions does physical change occurs?
-what kind of products result from physical change?
C. Application
Identify ten examples of physical changes taking place in their community.
D. Valuing
E. Evaluation
Multiple choice. Write the letter of the best answer.
1. Physical change happens when materials undergo a change in __________.
a. size b. shape c. phase d. all of them
2. Which of the ff. activities does not show physical change?
a. shaping a piece of clay c. bending a piece of wire
b. cutting strips of paper d. baking bread
3. Which conditions can bring about physical change?
a. heat b. pressure c. cold temperature d. all of them
4. Which of the ff. is not a result of physical change?
a. small pieces of paper after cutting a whole sheet of paper.
b. diff. sizes of rocks after pounding
c. ashes after burning
d. strips of cloth after tearing
F. Extension

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Related words used:

• Science
• Health
• Human body
• Matter
• Space
• Organism