This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

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

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

This science fair project idea determines which method of hand cleansing is the most effective.

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

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.

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.

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.

This science project teaches students to classify different shapes of leaves.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.