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Design & build you own kite
By BookStore on October 6, 20150You 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
By BookStore on October 6, 2015In 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
By BookStore on October 6, 2015More 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
By BookStore on October 6, 2015The 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
By BookStore on October 6, 2015A 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
By BookStore on October 6, 2015Surface 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
By BookStore on October 6, 2015A '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
By BookStore on October 6, 2015Water, 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
By BookStore on October 6, 2015You 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
By BookStore on October 6, 2015Do you think you are stronger than two of your friends? No? You may be stronger than you realize!...