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

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This art exercise is great way to help kids learn how to see just like a professional painter, while experimenting and having fun with monochromatic color!

This year for Valentine's Day, you and your child can bake up a batch of classic red velvet cupcakes and learn more about the history of this vintage treat.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

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.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Have a Twelfth Night celebration with this holiday tutorial and craft. Learn how to throw a Twelfth Night celebration in your house this winter.

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!

Encourage your third-grader to create a reverse glass painting. This will help him learn art concepts and improve his critical thinking skills.

Help your child learn about the world through this 3rd-4th grade geography activity: start a postcard collection and mark where they came from on a world map.

Looking for way to help Japan? Start by making paper cranes! Learn how you and your child can show your support for Japan through the art of origami.

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.

A pangram is a sentence that uses all the letters in the English alphabet. In this group game kids might just learn a thing or two about word choice in writing!

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Calling all power-shoppers! This game is a fun way for kids to learn life skills, and flex their math muscles at the same time.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

Help your 4th grader learn how to make a topographic map and strengthen key grade level social studies and math skills in the process.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.