How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Creating a home for a toad is an easy and fun project for kids. Here's how to make your very own toad abode.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

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.

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

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

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This science fair project idea investigates if webbed feet help a duck (and others) swim.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Start your toy engines -- this is going to be a fast and friction-filled race!

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.

Jazz up your patio or backyard with hip and quirky planters made from simple Mason jars.

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

Test whether plants can grow without sunlight and water.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

This science experiment has students test whether a snail moves faster on concrete or dirt.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

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

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

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

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.

Use pepper and soap to discover some fun facts about the properties of water.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.