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. _______________________