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

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

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

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

Teach your first grade scientist the difference between liquids and solids using maple syrup.

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

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

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.

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

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

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

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.

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

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

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.

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.

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.

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

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

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

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

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

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!

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

Explore scientific concepts with this experiment that introduces kids to the scientific method!

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