In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

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

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

The goal of this project is to create an exciting topographical map out of dough.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

In this science fair project, students use the streak test to tell minerals apart from each other.

In this experiment you will replicate the mummification process by making a hot dog mummy.

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

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!

Give your budding young observers a chance to discover simple machines at use in their own home.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

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