Explore scientific concepts with this experiment that introduces kids to the scientific method!

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

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

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

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

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

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.

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.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

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

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

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

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.

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

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

In this design challenge, your child will create a parachute for a small toy using typical household items.

In this activity, your child will be challenged to make a tower using paper cups.

In this activity your child will create their very own marble maze!

Challenge your learner to design and build a city of their own in this creative engineering activity.

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.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

Have your child kick off their summer vacation by making a miniature water slide!

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

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.

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?

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

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

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

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