ASTRONOMY ASSIGNMENT

  1. Name the four planets closest to the Sun.
  1. What is this group of planets called?
  1. Name the next four planets.
  1. What is this group of planets called?
  1. Compare the first group with the second group.
  2. Composition (what they are made of)
  1. Size
  1. Time required to complete one orbit (around the sun)
  1. Describe the feature of the Solar System that lies between these two groups of planets.
  1. Compare the movement and composition of this feature with the planets in the Solar System.

8. How do scientists use the light year unit versus the astronomical unit to measure distances in space? Give examples.

9. a)What is a comet?

b) How does it look like?

c) What is it made of (composition)?

10. Define the following

a) meteor:

b) meteoroid :

c) meteorite:

11. a) What is an asteroid?

b) What is it made of?

c) Where are asteroids mostly found?

12. a) Is the light of the moon its own?

b) If not, where does it come from?

13. What is a black hole?

14. What is a white dwarf?

15. What is a Nova?

16. How does the color of a star determine its temperature? Explain.

17. a) What is our Sun?

b) What is its color?

c) What is its temperature?

d) What is its age?

e) How many more years will our Sun live?

18. How far from the sun is the Earth?

19. What unit would you use to measure the distance between the sun and the Earth?

20. What unit would you use to measure the diameter of our galaxy?

21. What is the name and shape of our galaxy?

22. Name the different shapes of galaxies that are out there.

23. How many stars are in each shape of these galaxies?