Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

Here's a pressed leaf card project that puts science and writing together for your second grader.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

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

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Test whether plants can grow without sunlight and water.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Your child can help your family pet take a breather, and help herself relax, too, with this soothing activity.

This science fair project idea determines which method of hand cleansing is the most effective.

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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.

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.

This science fair project idea determines what household items are good conductors of electricity.

Slip some science into storm watching with a homemade rain gauge!

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

This will encourage your child to utilize their observation skills, develop aesthetic awareness, build artistic drawing abilities and learn about the seasons.

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.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

Making your own glass cleaner is easy, effective and inexpensive!