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 whether air has mass and weight.

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

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

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

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

Is our water polluted? Help your young scientist understand the importance of taking care of the environment with this simple experiment.

This will encourage your child to utilize their observation skills, develop aesthetic awareness, build artistic drawing abilities and learn about the seasons.

This science fair project idea investigates how magnetism can defy the force of gravity.

Inspire your child to learn about an amazing animal as she creates her very own polar bear habitat.