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.

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

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

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

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

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!

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.

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.

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.

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.

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"!

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.

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:

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

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

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

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

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

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.

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.

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.

Before your treat your child (and yourself!) to a yummy snack, help her learn a little about Sir Isaac Newton's First Law of Motion!

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.

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

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

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