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How Do We Know about Layers Deep within Earth?
What Time Is It?
Paper or PlasticWhich Type of Bag Is Better for the Environment?
Observe an animation showing the origin of the solar system.
Observe evidence of Earth rotating about an axis.
Explore a model of Earth's daily rotation.
Observe the view of the night sky from the same location over a year.
Explore a model of Earth's yearly revolution around the sun.
Learn more about how time is measured.
Learn more about methods of keeping time.
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Local Resources for Unit 2