Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

Kindergarten algebra is a lot different than high school. In kindergarten math, algebra means grouping like things, or noticing what doesn't belong in a set.

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

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

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

In this science fair project, students make their own rain gauge to measure rainfall.

Many ancient cultures used the rising or setting sun to create calendars. Observe the setting sun once a week to come up with your own solar calendar!

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.

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

Help your child celebrate the summer and the sun by making a sandy seascape.

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.

Make "fossils" with your child to hide in the sandbox or at the park or the beach, to help your child explore his archaeological side.

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!

Can't make it to the beach? Bring the science of ocean waves home with this fun earth science-related craft.

Make a spring collage with your child to get them outside and those creative juices flowing!

This easy at-home experiment is a great way to "see" science.

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

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

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

Let your fabulous crafter use their favorite flowers, fruits and herbs to whip up a delicious perfume that they can proudly present to a friend or a loved one.

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

This clay "painting" activity encourages and supports creative development and critical thinking skills.

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.