jueves, 18 de septiembre de 2008

Net Homework Asteroids and Comets

SCIENCE NET HOMEWORK
Read the information about asteroids and comets from the National Geographic web site. You may have an easy access through the link provided in the main page of this blog.
Then answer the questions below and e-mail them to the following gmail address:
arboleda2015@gmail.com
The deadline to send you homework is September, Sunday 21 at 9:00 p.m.
ASTEROIDS AND COMETS
Answer these questions with the information found in main page.

Why people have always been afraid of asteroids and comets?
How were asteroids and comets created?
Where are most asteroids located in the Solar System?
What are the two main differences between comets and asteroids?
What are the two hypotheses about the creation of the asteroids belt?
Why do comets glow?

Age Comets Article
Answer these questions with the information found in age comets article. You just have to click on it.

Which ones have been the most remarkable and visible comets in the last 30 years?
Scientists who study comets have found new information related to the theory of the origin of life on Earth. What is main idea of that information?
What usually happens to most asteroids when they get into the Earth’s atmosphere?
What scientists think it may have happened 65 millions years ago on Earth?

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