How Do We Weigh Planets?

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Resource Type:Classroom Activities; Curricula and Instruction
Grade Level:
K 1 2 3 4 5 6 7 8
Organization:National Aeronautics and Space Administration (NASA)
Summary:For accurate, kid-friendly information on planets, see NASA Space Place's page, How Do We Weigh Planets? Written for elementary and middle level audiences, the explanation covers topics such as How do scientists use gravitational pull as a scale?, Why do scientists usually discuss mass rather than weight?, and What is Earth's mass? A sidebar has links to material about other space questions, such as What is gravity? and Why are planets round?
Earth Science Big Ideas:Big Idea 1
NGSS Discplinary Core Ideas:ESS1.B
Subjects: 6-8; activities; elementary school; k-3; k-4; k-5; k-5 geosource; k-6; k-8; middle school; nasa; solar system; space
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