In this science fair project, young children discover what happens when two fluids that have different densities get together.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

Engineers in training can get started with this simple wheel-and-axle construction activity.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

I scream, you scream, we all scream for homemade spearmint ice cream!

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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.

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

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!

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

Satisfy your sweet tooth with this easy summer activity! Make homemade ice cream and let your child practice his science skills.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

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

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.