Science Review: Test Chapter 7

1.      The star that gives Earth light and heat is the ______. (Sun)

2.      The path Earth takes as it moves around the Sun is its _______. (orbit)

3.      The imaginary line that separates the northern part of Earth from the southern part is the _______________. (equator)

4.      It takes 24 hours for Earth to spin around, or _________.(rotate)

5.      Earth rotates on an imaginary line called an ________. (axis)

6.      What happens when Earth spins on its axis? (it rotates)

7.      Which star is closest to the Earth? (the Sun)

8.      What would it be like on Earth without the Sun? (cold)

9.      Why does the Sun look small? (It is so far away)

10.    How long does it take Earth to rotate once? (24 hours)

11.    Why is it dark here when it is light on the other side of Earth? (because the Sun lights half of Earth at a time)

12.    Why does one part of Earth get more light and heat in the summer? (that part is tilting toward the Sun)

13.    What makes day and night? (the rotating of Earth)

14.    When it is summer north of the equator, which season is it south of the equator? (winter)

15.    How long does it take Earth to orbit the Sun? (one year)

16.    Which places have the same weather most of the year? (Places near the equator)

17.    What is the Earth's axis? (an imaginary line from the North Pole to the South Pole)

18.    At what time is the Sun giving the most light? (noon)

19.     People on the beach cannot see the Sun at 9 P.M. because Earth has _______________. (turned away form the Sun)

20.    Is the beach getting more light at 6 A.M. or at 3 P.M.?

(3 P.M.)

21.    The Sun seems to move in the sky because Earth is _____________. (rotating)