uint 7 space review

4. What is the basic astronomical unit based on? the dissonance between the earth and ___
9. Unlike the inner planets, the outer planets are NOT rock planets and do not have _ cores.
11. Moon phases are the changing appearances of the _______ from the sun.
12. The seasons are caused by the direction Earth’s _ ___ is pointed with respect to the sun.
14. The yearly orbit of Earth around the Sun is called a _______.
15. What is the basic shape of every planet’s orbit? - ___________
17. What causes earth's tides. - The pull of the oceans as the earth rotates on its axis.
19. A lunar eclipse occurs when Earth is between the moon and the sun, and the Moon moves into the __ of Earth.
20. What planet has the most complex ring system? - ______

1. What is the largest planet in our solar system? - _________
2. Describe a total lunar eclipse. - When the moves into Earth's shadow
3. What planet has dark-colored storms and many moons? - ____
5. What planet has iron oxide and polar ice caps? - ___ __
6. An ___ _ is when the Sun's rays strike Earth directly at the equator
7. Moon phase in which none of the lighted surface of the Moon can be seen from Earth is called a _________ .
8. This planet has no atmosphere. - _______ ____
10. The order of all 8 planets outward from the Sun is mercury venus ___ mars jupiter saturn uranus neptune
13. Revolution is the Earth's yearly ______ around the Sun.
16. Unlike the outer planets, the inner planets are NOT made up of gass and not all of them have __ __.
18. A____ ____ is the turning of Earth on its axis.