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

How to Separate Salt from Water

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Rainbow in a Jar

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Color Changing Milk Experiment

This science fair project idea explores whether white light can be separated into different colors.

Can White Light Be Separated?

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

How to use Colored Filters to Send Secret Messages

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Homemade Butter

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

Magic Comb

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

Candy Science: A Halloween Experiment

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

Pepper and Soap Experiment

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Nice Shades! How Light and Color Affect Sight

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Make a Pulley

In this science fair project, students use the streak test to tell minerals apart from each other.

Streak Test

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

Design Challenge: Making a Catapult

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

Design Challenge: Inflate a Balloon

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Warm, Warmer: How Does Exercise Change Body Temperature?

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

Handedness and Footedness Test

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.

Halloween STEM Building Challenge

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

Robot Obstacle Course

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.

Air Pressure Science Experiment: Balloon and a Jar

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

What is Surface Tension?

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot move in a pattern related to the sound and rhythm of music.

Robot Dance Party

In this design challenge, your child will make a bottle rocket using typical household items.

Design Challenge: Making a Bottle Rocket

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Solids, Liquids, Maple Syrup!

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

Design Challenge: Making a Parachute

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Like Oil And Vinegar

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Design a Floating Cork Boat

In this science fair project you will make a model of a cell membrane using very simple material.

Cell Membrane

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

Design Challenge: Creating a Cup Tower

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Polymer Crystals vs. Ice

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

How to Make a Lemon Battery

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