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Handout
Wikipedia: Conservation of Mass Handout
Wikimedia

Wikipedia: Conservation of Mass

For Students 9th - 10th
This site from Wilkopedia defines the law of conservation of mass. Included are links to related topics and terms used in the definition.
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Unit Plan
Sophia: Units of Energy: Calorie and Joule Unit Plan
Sophia Learning

Sophia: Units of Energy: Calorie and Joule

For Students 9th - 10th
A narrated screencast which discusses various units used to measure energy: calorie, kilocalorie, and joule. [2:22]
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