Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Find out which type of sponge holds the most water.

In this experiment you will replicate the mummification process by making a hot dog mummy.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This science fair project idea experiments with spinning color wheels and optical illusions.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

In this design challenge, your child will create a parachute for a small toy using typical household items.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Discover how and which salt melts ice the quickest.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

In this fun activity, your child will create their very own solar oven to bake s'mores!

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

This science fair project idea explores the different properties of matter.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

In this science fair project, students use the streak test to tell minerals apart from each other.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

This science fair project idea determines if the color of light affects the growth of plants.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

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

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?