Name __________________________________
Clark
Science Period ________
Date _____________
TEST Review Astronomy #2 (38 pts.)
HelpfulHints7
1. Day and night are caused by Earth’s _________________ on its axis.
2. The stars appear to go around the North Star because the Earth is on an _______________.
3. An _________________ is an oval shape, which may be elongated or nearly circular.
4. An ________________ occurs when neither end of Earth’s axis is tilted toward or away from the sun.
5. Earth has seasons because its axis is ______________ as it moves around the sun.
6. When the north end of Earth’s axis is tilted toward the sun, North America will experience more ______________
rays and ________________ days.
7. Generally, the Earth is warmer at the equator than it is at the poles because the sunlight at the equator hits the
Earth’s surface more ________________ than it does at the poles.
8. The two factors that combine to keep Earth and the moon in their orbits are _____________ and
______________.
9. Gravity is constantly pulling objects together, but _______________ keeps the moon in orbit around the Earth.
10. The strength of the force of gravity depends on the _______________ of the objects and the _______________
between them.
11. A lunar eclipse occurs during a ______________ moon.
12. The phase of the moon you see depends on how much of the _______________ side of the moon faces Earth.
13. ____________ of the moon is always lit.
14. The amount of the lighted side of the moon you can see is the same during _________________ and
__________________ phase.
15. There is not an eclipse every month because the orbit of the moon is ________________ by about 5 degrees
with respect to the Earth’s orbit.
16. For a solar eclipse to occur, the ______________ must be directly between __________ and the __________.
17. The tidal bulge on the far side of the Earth, away from the gravitational pull of the moon is caused by
_________________ force.
18. _______________ tides occur when the sun’s pull is in the same direction (straight) as the moon’s pull.
19. _____________ are caused by the interaction of Earth, the moon, and the sun.
20. _______________ tides occur when the sun’s pull is at right angles to the moon’s
21. The fact that each planet’s orbit is an ellipse was discovered by _______________.
22. Copernicus explained that the __________ is at the center of the system of planets.
23. In a heliocentric system, _____________ revolves around the __________.
24. A star is born when nuclear ______________ starts.
25. The lifetime of a star depends on its ______________.
26. A _________________ is the explosion of a dying high-mass star.
27. The Milky Way galaxy is an example of a(n) ______________ galaxy.
28. The force that tends to pull together the matter in stars is ______________.
29. The sun produces energy by nuclear _______________.
30. - 33. Phases of the moon practice drawings on the back.
34. - 38. Constellations practice drawings on the back.
Please complete the night before the TEST:
Amount of time that I studied was ________ minutes.
____________________________________________
Student Signature
My child has studied.
I have checked my student’s grades on Infinite Campus.
_____________________________________________
Parent Signature