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

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

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!

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!

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

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 an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

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.

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

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

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

What happens when colored beams of light mix? You might be surprised.

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

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

Teach your child how butter is created by shaking up cream the old-fashioned way.

Here is a quick experiment you can conduct at the playground to introduce or reinforce the concept of Newton's First Law, The Law of Inertia.

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

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

This science fair project idea produces varying pitches of sound.

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

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

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

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

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.

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!

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

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

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