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Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Looking for a fun summer adventure? Learn what it was like to be a prospector during the California Gold Rush by panning for gold in a local creek.

Clouds are formed when warm and cold air meet. Here's a way for kids to see it all up close!

Who needs paint, glitter, or crayons when you have natural art supplies right outside your front door?

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

Some fossils have been been preserved for billions of years! Help your kid understand how fossils are created and preserved with this crafty project.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

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.

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

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.

This simple experiment serves as an introduction to the greenhouse effect.