Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

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

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

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

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

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.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

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

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

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?

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

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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

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

This science fair project teaches students about wilting and browning of salad greens.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

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

This science fair project teaches students the differences between fruits and vegetables.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

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

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.