Tuesday, February 24, 2009

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?

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