🔍 Experiment Of The Week – 9 Layer Density – by Steve Spangler

Density differences cause objects to “float” in liquids that are already stacked on top of each other.

With this science-magic trick, you’ll put a new spin on our famous Density Column demonstration. First, you’ll discover how to stack nine layers of liquids on top of each other. That alone looks really cool, but then you take it up a notch by making different solid objects “float” in the middle of all those cool looking stacked liquids. You’ll surprise yourself and your friends with what you can do with the 9-Layer Density Tower. Continue reading

Static Electricity STSE Jigsaw SNC1D1 – submitted by Michael Balzer

This lesson is used for students to analyse the design of a technological device that protects other devices by using or controlling static electricity (such as paint sprayers, photocopiers, lightning rods or grounding wires).  I use this lesson near the beginning of the electricity unit in SNC1D1, after introducing static electricity and charging by friction, contact and induction.

Static Electricity – STSE Jigsaw – Click here to download the entire lesson

Thanks for your submission Michael

Great lesson!!!!!!!!!!