Page 167 - Science Course 3 (Book 2)

The tilt of Earth’s axis as 5.
it revolves around the Sun
causes

The Moon ref ects light, 6.
making

The combined gravitation- 7.
al pull of the Moon and
Sun causes

Mo12-L1: Key Concept Check

Direction: On the line before each def nition, write the letter of the term that matches it correctly. Each
term is used only once.

1. daily rising and falling of the oceans A. lunar eclipse
B. solar eclipse
2. the spin of an object around its axis
C. solar system
3. largest object in the solar system D. the Sun

4. to circle around an object E. the Moon
F. orbit
5. the orbit of an object around another object
G. revolution
6. an object that revolves around Earth H. rotation

7. galaxy that includes our solar system I. elliptical
J. equinox
8. shape of Earth’s orbit around the Sun
K. solstice
9. occurs during a new moon L. phases

10. occurs only during a full moon M. tides
N. Earth
11. means equal night
O. Milky Way
12. visible shapes of the Moon

13. includes the Sun, planets, and the Moon

14. beginning of summer or winter

15. this object’s shadow covers the Moon during a lunar eclipse

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