1. 1-Day and night are caused by the Earth’s _______________ on its axis. Rotation

2. 2-What force pulls the Earth and Moon towards each other? Gravity

3. 3-Maria on the moon was made by _________________. Lava flows, or molten material

4. 4-What causes the tides? The Moon and the Sun’s gravitational pull.

5. 5-North America experiences summer when ___________. The Northern Hemisphere is tilted towards the sun.

6. 6- During a ______ tide, there is little difference between low and high tide. neap

7. 7-It takes 1 year for the Earth to __________ around the sun. revolve

8. 8-When the Moon is waxing, what side is lit up? The right side.

9. 9-A solar eclipse is when the _________ passes between the _________ and __________. Moon passes between the Sun & Earth

10. 10-A lunar eclipse is when the _________ passes between the _________ and __________. Earth passes between the Moon & the Sun

11. 11-Is the interior of the moon hot or cold? Cold- there have been no volcanoes on the Moon for billions of years.

12. 12-What is the surface like on the far side of the moon? Heavily cratered

13. 13-Dark patches on the moon were once thought to be __________. Oceans, but this is not the case. They are ancient lava flows.

14. 14-How large is the moon compared to Earth? The Moon is one quarter the size of Earth.

15. 15-The phase of the moon you see depends on the amount of the ________ _______ of the Moon is visible from Earth. Lit side

16. 16-How do most scientists believe the moon was formed? A mars sized object collided with the Earth, and the debris collected together in orbit to form the Moon.

17. 17-During what phase can a lunar eclipse occur? Full Moon

18. 18-Most places on Earth experience how many tides a day? 2 high tides and 2 low tides in about a day. (a 25 hour period)

19. 19-Why is only one side of the moon visible from Earth? The Moon rotates at the same rate that it revolves

20. 20- How long does one revolution of the Earth take in days? 365.25 days

21. 21-An Equinox occurs when: ________________________ The Sun is directly over the equator.

22. 22- What phases does the moon need to be in for a neap tide to occur? 1 st quarter or 3 rd quarter

23. 23- If you are in the _______ you would see a total eclipse. Umbra

24. 24- Why do solar eclipses only happen during the New Moon phase? That is the only time that the Moon is directly between the Sun and the Earth.

25. 25- What shape is the Earth’s orbit? Oval

26. 26- Why are lunar eclipses more common than solar eclipses? Everyone on the night side of the Earth can see a lunar eclipse, on a small amount of people get to see a solar eclipse.

27. 27- What would have bigger difference in the tides, a gibbous Moon or a quarter Moon? Explain why: Gibbous, the smallest difference in tides occur during the quarter Moons, any other phase would have a larger difference

28. 28- During winter in North America, the South Pole is pointed __________ the Sun. Towards