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

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.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Introduce your child to science with something they see everyday--their shadow!

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

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.

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

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

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.

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 science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

Satisfy your sweet tooth with this easy summer activity! Make homemade ice cream and let your child practice his science skills.

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

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

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

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

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

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

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

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

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

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!

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!

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

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

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

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.