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Students test the buoyancy of a large set of objects, many of which are the same size and shape but of different composition, shape a clay boat to observe the relationship between form and buoyancy, test the weight of objects out of the water and when submerged, & use spring scales to measure the buoyant force on fishing bobbers.
Unit kit comes with a Teacher's Guide, 15 reusable Student Investigations books, 8 copies of STC BOOK: Floating and Sinking, and the materials needed for a class of 30. Added value: 8 KIDS DISCOVER Nonfiction Readers. Refurbishment Set replenishes kit consumables.
The two use kit comes with all of the great materials you'd expect from the STC Program along with a box containing the materials for a second, non-concurrent use. All you need to do is set the box aside until you are ready for it.
