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

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

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

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.

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.

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

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

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

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.

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

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.