Use pepper and soap to discover some fun facts about the properties of water.

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

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

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.

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

Check out this cool science fair project on identifying rocks and minerals for kids.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

Find out which type of sponge holds the most water.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

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.”

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Discover how and which salt melts ice the quickest.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

In this science fair project, students make their own rain gauge to measure rainfall.

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

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

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

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

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

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

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

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

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