Chaos theory means deterministic systems can be unpredictable.
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Why does shaken soda explode? Does ice melt first in fresh or salt water? Thank you Squarespace for sponsoring this video. Continue reading
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
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
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Black Holes are known for consuming everything that falls into them, but is there a point where these galactic devourers can’t stomach anymore? Continue reading
Mr. Key compares covalent and ionic bonds in order to explain why particles of salt are referred to as formula units and not molecules.
The outer layer of the sun is slowing down, something we’ve known for decades but haven’t been able to figure out until now. Continue reading