Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

How do organic materials become soil? This science experiment measures what materials biodegrade.

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

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

This science fair project examines how seeds hitchhike on animals and clothing.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

In this activity your child will create their very own marble maze!

The project investigates how water and movement affects erosion.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

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

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

This science experiment has students test whether a snail moves faster on concrete or dirt.

Come take off your shoes and explore with your feet. Your child will embark on a barefoot adventure as he plays with different textures.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

This science fair project idea investigates whether air has mass and weight.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

In this investigation, an oil spill is simulated in a jar to observe the damage that oil spills have on the ocean and ocean life.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.