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Overflowing Surface Tension

A simple experiment using a cup, water and some coins to demonstrate the effect of surface tension.

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Surface Tension

The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension.

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Explore Big History

Interactively explore the timeline of the universe.

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What is surface tension?

SImple explanation of what surface tension is and how water molecules interact.

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Hunkin's Experiments - Surface Tension

Some quick, fun surface tension demonstrations.

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Surface tension

An explanation or surface tension and how it makes capillary action possible.

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Surface tension science: build a raft powered by soap

An activity to try in the bathtub. It explores surface tension and all you need is scissors, styrofoam, a sponge, a toothpick, water and some soap.

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Squishy Circuits

An activity to do at home to explore the world of circuits. Make two types of dough, one that carries electricity and one that doesn't, to create all sorts of circuits and explore how they work.

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Google moon

Explore the moon's surface with this map: a mosaic of landing site images and a tour of the Apollo moon landings.

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Frictional resistance to the relative motion of two solid objects is usually proportional to the force which presses the surfaces together as well as the roughness of the surfaces. Since it is the ...

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