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 science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

This slightly messy, but tons-of-fun tactile activity will cement the idea of the land and water as pictured on maps in your young learner's mind.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Help your child plant a "tea garden": a garden made of herbs for making teas.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

Help your little one figure out the differences between the worlds of air, land and water, a huge step in understanding how our environment works.

Test for a correlation between perceived color and heart rate. Using a stethoscope and stop watch, measure the heart rate (beats per minute) of volunteers.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

This fun elementary school science fair project idea helps students in designing an amusement park using their knowledge of forces and simple machines.

Play Rock Tic-Tac-Toe, the perfect outdoor game for all ages. Help your child develop thinking skills and get away from the TV!

Create a bee garden to help shelter bees in your area.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

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.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

What is a barycenter? Kids learn how gravity and mass influence the orbit of binary systems like planets and moons or stars and planets in this cool experiment.

Design and build a scale model representing living tree architecture. Then build a full-size version using one or more lives trees, and test your creation.

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

Explore the properties of light and color using photographic filters. Take pictures of color spectrum, compare results of different filters.

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.