Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

This homemade parachute toy is incredibly easy to build. Plus, it gives kids an excuse to investigate and experiment...the backbone of kindergarten science.

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

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

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.

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

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

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

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.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

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

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing 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!

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.

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

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

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

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!