In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

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

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This classic children's game demonstrates how sound travels through air vs. through a solid.

This science fair project idea investigates whether air has mass and weight.

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

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Explore if planting seeds in a certain direction will affect how fast it germinates.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

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

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

This science fair project idea investigates if fats add to the flavor of food.

This science fair project idea investigates the difference in reaction times between boys and girls.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

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

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?