Sink or Float Lab- Measuring salinity and density
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Everything you need to teach a unit on oceans for middle school students. Learn about the names of the ocean,s how they formed, the ocean floor, ocean zones, salinity, and more. Check out previews before you buy!Be sure to follow my TpT store by clicking on the green "follow me" next to my seller piPrice $54.40Original Price $68.00Save $13.60
Description
What is the effect of salt on an objects ability to float? Included are 2 versions of this lab:
Version 1: Students will measure how much salt it takes to make a baby carrot float in a beaker of water. Emphasis is on salinity and comparing fresh water to salt water. Intended for grades 6-7. Includes a fully editable lab worksheet and powerpoint to accompany the lab.
Version 2: Students will measure the density of fresh water, a baby carrot, and salt water. Emphasis on calculating density and the effect of density on buoyancy. Intended for grades 8-9. Includes a fully editable lab worksheet and powerpoint to accompany the lab.
Materials needed for labs: beakers, water, salt, bag of baby carrots, measuring spoons, graduated cylinder, electronic scale or triple beam balance.
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