These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Your fourth grader will hone his fine motor skills and learn to follow directions as he creates this recycled angel tree topper out of an ordinary soda bottle!

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Inspire your learner to love poems like Sonia Sotomayor by reading some poetry aloud!

This chore obstacle course will keep your child entertained and engaged, while also helping them improve their efficiency at everyday tasks.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

Check out this activity that has your kid create her own Cubist montage. Soon your kid will be well on her way to understanding the vibrant art of Cubism!

Help your third grader author a lovely limerick in honor of Valentine's Day! He'll be delighted to compose and recite this nonsensical poem.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

This science fair project idea identifies the properties of soap bubbles and invents a new or improved bubble solution.

This activity will further your child's ability to interpret graphs and apply math skills in a real-world situation.

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

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

Use the holiday gift giving season as an excuse to give your fourth grader a valuable lesson in making and keeping a budget!

Be active while learning about American history with this twist on the classic running game "Capture the Flag."

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Here's a black fuzzy spider that's sure to cause a silly fright! This eight-legged creepy crawler is sure to surprise anyone looking for a treat.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

Find out whether putting something on top of a plant will inhibit its growth.

In this arts and crafts activity, help your kindergartener make friendship bracelets with just safety pins, elastic, and some colorful beads.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Show your child how to concoct a simple duo of household ingredients that changes color as acids and bases are added!