In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

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

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

Discover whether cold or hot water from the faucet will boil faster on the stove.

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

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

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

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

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

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

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

This project compares the strength of one, two, and three-ply toilet paper.

Help your kindergarten or first grade child use his creativity to make a beautiful magnetic patterned structure while discovering the wonders of magnets.

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 how magnetism can defy the force of gravity.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

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

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This science fair project idea investigates how the shape of an object affects drag.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

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

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.