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Physics Unit 4 (Round 6)
Meteors, Orbits, & Gravity

How have collisions with objects from space changed Earth in the past, and how could they affect our future?

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Unit Resources and Lesson Documents

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Unit Resources 

Unit Overview Materials (Unit Overview, NGSS Elements, Teacher Edition, Student Edition)

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Lesson 2

Why do some rocks (and junk) from space impact the ground and others do not?

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Lesson 5

How do we find big old craters on Earth?

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Lesson 8

How does gravity cause only some objects to orbit?

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Lesson 11

How can we account for the motion of objects that don’t follow Kepler’s Laws?

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Lesson 14

What can we do if something is in an orbit that will hit, and is big enough to cause damage?

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Lesson 3

What happens when rocks hit planets or moons with little or no air?

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Lesson 6

How can we evaluate whether the Chicxulub impactor could have killed the dinosaurs?

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Lesson 9

Why do objects sometimes collide in space?

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Lesson 12

How have the objects around Earth (and Earth) changed over time?

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Lesson 1

Why is stuff falling from the sky?

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Lesson 4

What determines the size of the crater made on impact?

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Lesson 7

How far does Earth’s gravity extend into space?

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Lesson 10

How do objects travel within their orbit paths?

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Lesson 13

What’s the probability of an impact from something big enough to pose a significant threat?

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