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.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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

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

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

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

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

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

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

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

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

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