The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

This science fair project idea determines the most effective method of preserving food.

In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.

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!

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

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

This science experiment tests if dog saliva can really help heal wounds.