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

Make a backbone model to explore human anatomy and life science.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

Make edible amber fossils with your second grader to explore the fascinating world of science!

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.

Help your child make a beautiful homemade sandcastle that will last!

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Who knew that you could make beads out of rose petals? Not only can it be done, but the beads smell wonderful!

With a clear bottle and a few plastic straws, you can easily make a hummingbird feeder and demonstrate the effects of atmospheric pressure at the same time!

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

You don't need to wait for rain to see a rainbow. Make one yourself, and teach your child about light and weather in the process.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

Here is a nifty science experiment using Epsom salts to make "frost" appear on a piece of glass.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

This basketball project explores the best way to make the perfect shot every time.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

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