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This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

This science fair project investigates why the number of visible stars changes from place to place.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Make sourdough bread...and learn some colonial history and modern science in the process!

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

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.