In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

Using a toy race car kids create a visual model of the Doppler Effect.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

This science fair project idea investigates if fats add to the flavor of food.