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.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

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

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

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

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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.

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.

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

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

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

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!

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

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

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

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.

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

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.

Experiment with magnetism in this 8th grade science activity in which your child will create a working compass using a steel needle, magnet, and jar.

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.

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!

Help your kindergarten or first grade child use his creativity to make a beautiful magnetic patterned structure while discovering the wonders of magnets.

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.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

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.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!