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.

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

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.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

Learn with makes water molecules work with this fun and easy science activity!

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

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

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

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

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

How powerful is the reaction between baking soda and vinegar? Find out here!

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

This is a fun way to introduce kids to the concept of volume, and give them a quick hands-on activity to boot.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

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.

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.