1. 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 Space Junk Stars Days/years/ seasons Moon/tides/ Eclipses Pot Luck

2. 100 This piece of space junk orbits between Mars and Jupiter.

3. 100a Asteroids http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/asteroids. html

4. 200 This type of space junk has a highly elliptical path.

5. 200a Comets http://www.astro.washington.edu/larson/Astro150b/Lectures/Comet s/comets.html

6. 300 This type of space junk does not burn up in our atmosphere.

7. 300a Meteorite (It impacts the Earth.) http://www.historyoftheuniverse.com/meteorit.html 65 million years ago a disaster happened, although we are not sure of the cause. All the dinosaurs and many other groups of animals and plants became extinct around this time. The most popular theory is that a mountain-sized meteorite hit the Earth, throwing up a thick cloud of dust and causing tidal waves and global forest fires. The dust hid the Sun. This might have killed many plants, which need light to live. It might also have cooled the Earth and so killed the dinosaurs which, being unable to keep themselves warm, might have stopped moving and so starved.

8. 400 This type of space junk can be composed of rock, metal, or both.

9. 400a Asteroids http://science.nasa.gov/headlines/images/eros/orbits.gif

10. 500 This type of space junk is composed of frozen gas and dust AND may orbit in the Oort Cloud or Kuiper Belt.

11. 500a Comets http://www.solstation.com/stars/kuiper.htm

12. 100 Star’s that are this color have a cooler temperature.

13. 100a Red http://www.profjohn.com/courses/ast1004/hrdiag/hrdiag.htm

14. 200 Stars begin their life in a stellar nursery called ________

15. 200a Nebula http://www.enchantedlearning.com/sgifs/Starlifecycle.GIF

16. 300 Small Stars like our sun end their life as a _________ then a _________.

17. 300a White dwarf then black dwarf http://www.geol.vt.edu/vesr/es/astr/star/star.html

18. 400 How long a star lives depends on

19. 400a The original mass of the star. http://www.seasky.org/cosmic/sky7a01.html

20. 500 The largest type stars will end their life as

21. 500a Black Holes http://www.star.ucl.ac.uk/groups/hotstar/research.html

22. 100 The Earth moves from daylight to darkness once every day due to fact that it is

23. 100a Rotating http://www.nasa.gov/worldbook/wbkids/k_dayandnight.html

24. 200 The Earth will make one trip around the sun each year. This movement is called

25. 200a Revolution Earth is farthest from the Sun at its aphelion (summer in the Northern Hemisphere) and closest during its perihelion (winter in the Northern Hemisphere). http://www.mhhe.com/earthsci/geology/mcconnell/earths_climate/intro.htm

26. 300 In which direction do both the Earth and Moon rotate and revolve

27. 300a Counter-clockwise http://www.brocktonpublicschools.com/schools/high/planetarium/activities/ phases/phases4.html

28. 400 In the spring and fall the sun is directly over _______

29. 400a The equator. It is overhead at the equator during the Spring and Fall equinoxes. The Sun is overhead at the Tropic of Cancer on June 21. This is the furthest north that the strongest rays will travel. It is overhead at the Tropic of Capricorn on December 21. http://www.mhhe.com/earthsci/geology/mcconnell/earths_climate/intro.htm

30. 500 The three reasons for the seasons are

31. 500a The tilt of the Earth, revolution around the sun, direct/indirect light that reaches Earth’s surface. ***Notice how the location of the most direct rays change as the Earth revolves around the sun. http://www.onr.navy.mil/focus/spacesciences/observingsky/motion3.htm

32. 100 What conditions are necessary for a spring tide to occur?

33. 100a The positioning of the sun and the moon also has an effect on the height of the tidal swell. During a new or full moon phase, the sun and moon are in line, pulling on the earth's surface. This creates a higher level of tide - called the "spring tides" from the Welsh word "springan" meaning 'to bulge'. http://www.thehopewellrocks.ca/english/fundytides2.htm

34. 200 What percentage of the moon is always illuminated?

35. 200a 50% http://www.amastro.org/at/mo/mopo.html

36. 300 The image is a model of ?? http://csep10.phys.utk.edu/astr161/lect/time/eclipses.html

37. 300a Solar Eclipse. A solar eclipse can occur when there is a new moon. This does not occur every month because the moon's orbital plane doesn't "lie flat" along the ecliptic, but forms an angle of about 5º as you can see in this diagram (note: the distances in this diagram are not to scale). http://www.ap.stmarys.ca/demos/content/astronomy/lunar_eclipse/lunar_eclipse.html

38. 400 This image is an example of ???? http://www.coldwater.k12.mi.us/lms/planetarium/guide/moon.html#wax%20cres

39. 400a A waning crescent moon http://www.bellatrixobservatory.org/moon.jpg

40. 500 The phases of the moon are due to ________

41. 500a The position of the Earth, Sun, and Moon. **Light on right, moon is getting bright. http://starchild.gsfc.nasa.gov/Images/StarChild/icons/moon_from_earth.gif

42. 100 The unit of measurement that scientists use to measure distances in space.

43. 100a Light years Distances in space are huge and if we used miles or kilometers our data (numbers) would be huge. One light year is equal to an extremely long distance - 5,865,696,000,000 miles to be exact! http://www.rlrouse.com/astronomy/light-year.html The closest star to the earth, not counting our own sun, is Alpha Centauri. This star, our solar system's closest stellar neighbor is 4.3 light years away from the earth! This means that t he closest star to the earth (besides the sun) is >>>> 23,462,784,000,000 miles away from us!solar system's

44. 200 Galaxies are classified by ??

45. 200a Their shape. The Milky Way Galaxy is a spiral galaxy. http://www.ncsu.edu/project/agronauts/mission1_2.htm

46. 300 Billions of stars clustered together are called???

47. 300a Galaxies This is a picture of an irregular galaxy. http://starchild.gsfc.nasa.gov/docs/StarChild/universe_level2/ngc6822.html

48. 400 What two forces keep our planets in orbit around the sun?

49. 400a Gravity and Inertia (sideways motion in image). http://www.ncsu.edu/project/agronauts/mission1_2.htm

50. 500 Why can Hubble take clearer pictures that Earth based telescopes?

51. 500a It is above our “pesky” atmosphere. http://antwrp.gsfc.nasa.gov/apod/ap970306.html