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

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

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.

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.

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!

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.

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

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

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

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

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

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

This science fair project idea explores whether talking to a plant will help it grow.

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!

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

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

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.

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

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

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

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

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.

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

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

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.