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Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.