The premier destination for fun science projects & experiments for kids grades K-8 since 2010!

Forces & Motion

  • Design & build you own kite

    You can have a lot of fun by making your very own kite and fly it high up in...

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  • Make a depth indicator similar to the gauges used on ships

    In this science experiment, you will construct a device that measures water pressure at different depths in a body...

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  • Pick up heavy weights easily with a double pulley system

    More complex pulley systems like a 'two-pulley' or 'double pulley' system can make your work even easier, but it...

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  • Blow soap bubbles to investigate the strength of surface tension

    The surface of a liquid is held together by a strong force known as 'surface tension' and this same...

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  • Pick up heavy weights easily with a simple pulley system

    A simple 'pulley' consists of only a rope that is looped around a support (usually a wheel). More complex...

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  • Make matchsticks move without touching them

    Surface tension makes the surface of a liquid seems as if it has a thin, elastic skin over it....

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  • Make a pendulum bowling game

    A 'Pendulum' is a rod or a string with a weight called a 'bob' on the end. Pendulums are...

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  • Have fun with the cartesian diver experiment

    Water, similar to air, is a fluid. According to Pascal's principle: when a force is applied to one point...

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  • Propel a small boat with a piece of soap

    You can have a lot of fun by making a 'speed' boat that is invisibly driven by soap. In...

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  • Prove you are stronger than your friends with a simple pulley system

    Do you think you are stronger than two of your friends? No? You may be stronger than you realize!...

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