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.

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

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.

What better way to celebrate spring than with a fabulous flower party? Pack the day with fun flower activities and treats for a truly springalicious event!

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

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

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Help your kindergarten science maven explore the water cycle without getting everything wet.

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.

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

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.

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

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!

There are hundreds of properties in rocks which you can describe, so get your geology goggles on and get ready to rock your child's science skills.

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

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

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

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.

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

Create a self-portrait from natural materials in this collage craft activity!

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

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

Is your child a young ornithologist in the making?

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!

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

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.

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

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

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