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

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

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

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

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 activity, your kid will watch coal turn into crystals right before her very eyes, and learn some science along the way!

Take advantage of the spring and summer sun in this arts and crafts activity that has your learner creating pretty flower prints.

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.

Boys might wrinkle their noses at the thought of gardening, but we guarantee they'll like this activity! Make a recycled terrarium full of bug-eating plants.

Are you looking for an out-of-this world activity that's both fun and educational? This solar system garland is a great way to introduce your child to astronomy.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

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

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

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

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

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

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

Help your young scientist celebrate the wonders of the night sky in the comfort of your own home.

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!

Help your fifth grader embrace the roots--literally--of Mother's Day by growing carnations to honor mothers in you family's history.

With a clear bottle and a few plastic straws, you can easily make a hummingbird feeder and demonstrate the effects of atmospheric pressure at the same time!

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.