How did the earth become the mass that it is now? Your young scientists explore this question through the concept of density. Their inquiries consider the impact of gravity on the formation of planets. The culminating activity of the unit has learners create a model of a new planet.

Concepts

planets, density, mass, compositions

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Additional Tags

science

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Instructional Ideas

• Have your classes research materials that have the same density as the earth's layers

Classroom Considerations

• Several components of the unit require specific materials and time for set up prior to the activities
• Pupils should be familiar with the properties of matter

Pros

• Emphasizes key vocabulary
• Includes ideas for extension

Cons

• None

Common Core

SL.8.1.a SL.8.1.b SL.8.4 RST.6-8.4 WHST.6-8.4 WHST.6-8.10