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!

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

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

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

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

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

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!

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

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.

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.

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

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

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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

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

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

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

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

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

This surprisingly good glue recipe comes from common kitchen items.

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.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.