Science Homework Help!!!!?

Question

7. Polaris (North Star)
A. is the largest known star
B. is the brightest star in the northern sky.
C. is in the Little Dipper
D. all of the above


8. Why do we not see the moon during a new moon phase?
A. The moon is on the side of the Earth opposite the sun.
B. The moon is between the Earth and the sun.
C. The moon is behind the sun.
D. The moon's dark side is facing the sun.


9. The moon makes its own light.
A. True
B. False


10. During a full moon phase the moon is between the Earth and sun.
A. True
B. False


11. Our sun is
A. about the same size as the earth.
B. about the same size as our moon
C. so large the earth is only a dot by comparison
D. about the same size as Jupiter


12. What is the most massive object in our solar system?
A. Moon
B. Earth
C. Sun

13. The Sun is made up almost entirely of which element?
A. Helium
B. Hydrogen
C. Alpha particles
D. Water


14. What produces energy in the Sun?
A. Alpha reactions
B. Proton splitting
C. Nuclear reactions
D. Yellow dwarfs


15. Our sun is
A. the point around which all stars revolve.
B. the largest star in our galaxy.
C. an average sized star.
D. a neutron star



16. The convection zone transfers energy through
A. the motion cycle of heating and cooling.
B. Transmutation
C. Polynucleation
D. none of the above


17. Nuclear fusion takes place in the sun's
A. Photosphere
B. Corona
C. convection zone
D. core


18. Sunspots' motion give us evidence
A. that the sun has day and night
B. that the sun rotates on its axis
C. that the sun is completely motionless
D. that there are tiny planets that are very close to the sun's surface

Answer 1

The first poster is shockingly ignorant about astronomy, or is trying to lead you astray.



Please explain where you're stuck? I find it difficult to accept that you've actually *tried* to do these questions and haven't been able to get one of the twelve varied items that you've posted here. For instance, simply looking up "Polaris" on line will get you the answer to #1. Any encyclopedia article on the sun will give you about half the answers. A dictionary will help with a couple of others.



However, I will give you a couple of bits that are more difficult to find through the direct research you've failed to do.



16. A -- this does come from the definition of convection, but only if you know how to interpret what you see in the dictionary.

17. D

18. B



Before you consider posting here again, please make sure that you've done your due diligence as a student. If nothing else, eliminate the joke answers and other obvious falsehoods. For instance, 18 A and D are there only for comedy relief.

Answer 2

I think these are the answers:

7. B

8. A

9. B

10. A

11.C

12. C

13. B

14. C

15.B

16. don't know

17. A not entirely sure

18. B

Answer 3

nicely enable me merely whip out the ole McDougal Littell Earth technological expertise e book I even have in my closet o wait, maximum persons answering this have not got your textbook the questions could be superb