Ultraviolet Light Detecting Beads - Educational Innovations
2015 Educational Innovations, Inc. 2 www.TeacherSource.com UV Detecting Beads How do the Ultraviolet Light Detecting Beads work? Our UV-sensitive beads contain a unique pigment that changes color when exposed to ultra-
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Sodium Polyacrylate (Diaper Polymer)
cdn.teachersource.com2011 Educational Innovations, Inc. 2 www.TeacherSource.com Suggested Activities 1. How much water will a super-absorbent diaper hold? Procedure: Show students a super-absorbent diaper, a glass, and a pitcher of water. Ask students how many glasses of water the diaper will hold.
Glo Germ Classroom Kit Lessons - Educational Innovations
cdn.teachersource.com2015 Educational Innovations, Inc. 2 www.TeacherSource.com handle from the pump so it couldn’t be used; the outbreak ended. A check of the water company revealed that the water source for that pump was a polluted section of the Thames River.
Understanding Coefficient of Power (Cp) and Betz Limit
cdn.teachersource.comcoefficient of power for any wind turbine. In the diagram shown above, the wind turbine converts 70% of the Betz Limit into electricity. Therefore, the Cp of this wind turbine would be 0.7 x 0.59 = 0.41. So this wind turbine converts 41% of the available wind energy into electricity. This is actually a pretty good coefficient of power.
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