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.

Try this chemistry experiment with your curious kid and get some "shocking" results!

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

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.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

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.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

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.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

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.

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

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!

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.