August 23, 2002
Scientists Find Signs Big Meteor Hit Earth 3.5 Billion Years Ago
Kenneth Chang
New York Times
borrowed from Cornell University web page
Bell Ringer: What is in the picture? Why is this object significant?
Objective: SWBAT discuss what an asteroid is; identify the causes of an asteroid orbit; discuss the concerns of an asteroid striking earth.
Lecture/Discussion:
1. What is an asteroid?
2. What materials make up an asteroid?
3. What causes the flight pattern (orbit) of an asteroid?
4. Can asteroids collide with Earth?
5. What effects can come with a collision?
6. Is there any way to stop a collision?
Practice/Activity:
Click here for interactive activity
Click here for asteroid research
Closure: Discuss facts and myths about asteroids. If students have any questions, review the answers.
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