CRCT Question

1. CRCT Question Which phase of the moon occurs just before the waxing-gibbous and after the waxing-crescent? Full moon New moon Last quarter moon First quarter moon

2. Just Remember… Waxing Is like Relaxing! Light is on the right

3. Candy Toss Review

4. Rotation – the actual movement of the Earth spinning on _____________________

5. Rotation of earth takes how long?

6. Revolution of Earth takes how long?

7. In the northern hemisphere we tilt _______________the sun in the summer and vice versa in the winter.

8. There are two days each year where there is exactly 12 hours of darkness and 12 hours of light. AND Sun is directly overhead at the equator at noon. This is called?

9. About how long is one moon cycle?

10. Waxing means?

11. Waning means?

12. What phase? • You see a sliver of light on the right side of the moon

13. What Phase? • You can see half of the moon’s lighted side • The lighted side is the left side of the moon

14. Quiz

15. Why do we always see the same side of the moon?

16. Part 3: Eclipses

19. Lunar eclipse

20. Time lapse photography of a lunar eclipse

22. Diamond ring effect just before or after a total solar eclipse.

23. This animation shows the relative sizes of the partial and total eclipse areas. The small, black dot is the umbra. You can see why not many people ever see a total eclipse.

24. This is a space shuttle photograph of an area of the Earth having a total solar eclipse.

25. Types of Solar Eclipses • Total Solar Eclipses occur when the umbra of the Moon's shadow touches a region on the surface of the Earth. • Partial Solar Eclipses occur when the penumbra of the Moon's shadow passes over a region on the Earth's surface. • Annular Solar Eclipses occur when a region on the Earth's surface is in line with the umbra, but the distances are such that the tip of the umbra does not reach the Earth's surface.

26. Types of eclipses Link to NASA eclipse page Be sure to scroll down for a list of upcoming eclipses.

27. Eclipse Movie

28. Photo of the earth taken by Apollo astronauts from the surface of the moon. Notice that the earth goes through “phases” if you are on the moon.

29. How did the moon form? Video clip of lunar formation

30. http://burro.cwru.edu Evidence from the composition (what it is made of) shows that the moon was formed by a collision of an object the size of Mars hitting the earth. The material that blasted into space began to orbit the earth and eventually collected up to form the moon.

31. Animation of lunar formation http://www.scientificpsychic.com

32. Collision Theory Evidence ! • Material on the moon is like our crust and mantle. Very little iron is there. • No atmosphere on the moon due to high energy impact. • Same oxygen atoms are on the earth and moon that are different from ones found in comets and meteoriods!

33. Stats of the Moon: One fourth earth's diameter Has 1/6 of our gravity Is 250,000 miles away Laser mirror left on the moon used to measure distance. 5. We also measure moonquakes.

34. NASA's Apollo missions Goal was to put men on the moon to explore and conduct scientific experiments. Neil Armstrong was the first person to walk on the moon. He did so on July 20, 1969. Video clip of Apollo Missions

35. Remember!

36. Lunar far side looks very different from the side of the moon we always see!

37. Regolith – lunar soil – caused by meteorite impacts

38. Maria Maria Rays around craters Highlands

39. Apollo 15 Maria Highlands

40. newer crater Old crater Apollo 15

41. Photo Apollo 15

42. Earthrise Apollo 8

43. Crater Copernicus viewed from lunar orbit Apollo 12

44. Capturing the Sun:aluminum panel trapsatomic particles from the Sun during the Apollo 11 mission.

45. Apollo 12 Alan Bean descends the Intrepid's ladder

46. seismic experiment Apollo 14 Moonquakes occur because of the earth pulling on the moon. They are called “rock tides.”

47. Apollo 15

48. Rock sampling Apollo 15

50. Apollo 16 – getting soil samples