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 teaches about mold. Students will test different foods to see which grow mold the fastest.

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.

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?

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

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?

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

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

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

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

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

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

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

This science fair project idea demonstrates that plants give off water.

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

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

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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

Using a toy race car kids create a visual model of the Doppler Effect.

Learn how different types of soil affect how animal tracks form in this experiment!

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

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, young children notice and track changes in trees throughout the year.

People have favorite flavors, but what about ants? Which ant food is the most popular?

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

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.