The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

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.

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

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.

Help your kindergarten scientist discover relative size, density, and buoyancy with this fun, pumpkin science project!

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.

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

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?

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.

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

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

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

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.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

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.”

Help your child learn about animal classification with this fun and delicious activity.

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.

This project will explore whether test subjects, deprived of points of reference, will, in attempting to walk a straight course, walk in circles.

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.