eBook
OpenStax

Open Stax: Physics: Archimedes' Principle

For Students 11th - 12th
From a chapter on Fluid Statics in a Physics textbook. This section of the chapter provides a detailed discussion of Archimedes' principle, buoyant force, floating and sinking, and the role of density. Includes questions, problems and...
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Other

Ganoksin.com: Specific Gravity of Gemstones

For Students 9th - 10th
Specific gravity is defined and explained. Practice problems are given and solved. Illustrations included as well.
Activity
Science Buddies

Science Buddies: Project Ideas: How Much Sugar Is Really in That Soda?

For Students 9th - 10th
In this science fair project, use a precision hydrometer to measure the amount of sugar in soda. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and introduction, followed by a section on...
Activity
Science Buddies

Science Buddies: Up, Up, and Away in Your Own Hot Air Balloon!

For Students 9th - 10th
In this science fair project, students will make hot-air balloons using a toaster and dry-cleaning bags, and see how the size of the balloon affects its flight. The Science Buddies project ideas are set up consistently beginning with an...
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Annenberg Foundation

Annenberg Learner: 5 Question Survey: Rising and Sinking

For Teachers 4th - 6th
Find out your or your students' understanding of fluid displacement. Afterwards you can see how others answered the questions.

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