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How hot is Levi Johnston?

Sizzlin'!
Not bad. I've seen better.
He's taking the quick fame thing way too far.

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Sciences

Cliff has answered many Science questions from other students who need a little help on their homework and tests. Browse this list of questions to find out if Cliff already has an answer for you. If not, return to the Ask Cliff page to ask your Science question, keeping in mind, of course, that Cliff won't do your homework for you.

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26. What are tectonic plates?
27. I have boy trouble. I want to ask out my friend, but I am not sure he is going to say yes. Plus, he said he had a girlfriend when we talked during school. Plus, my parents don't want me to date.
28. What is the current law on compulsory vaccinations in the U.S.? Are there any exceptions for people who don't want to get vaccinated?
29. Why is the sky blue?
30. Do you really shrink at the end of the day and then grow in the morning?
31. What is the difference between "matter" and "mass"?
32. In what countries does Toyota produce and market cars?
33. What does "nature versus nurture" mean?
34. What are closed contour lines?
35. What is homeostasis?
36. What does the periodic table look like?
37. Do you know anything about the law of conservation of energy? Is it really a law?
38. I thought I knew what work means, but my physics teacher defines it differently. What's up with that?
39. How do plants know when to drop their leaves?
40. What's the surface of the moon like?
41. How does the number of neutrons in the nucleus of an atom differentiate it from another atom?
42. How do big rocks wear down over time?
43. What does genetic recombination mean?
44. How has DNA matching really made big difference in finding out who committed a crime?
45. Do you have any tips for doing well on the AP Chemistry test?
46. What's the difference between the sympathetic and parasympathetic nervous systems?
47. What is incomplete dominance?
48. Can hydrocarbons be considered compounds?
49. Can you explain what molar mass is?
50. Aren't fungi really plants?
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