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

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

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

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

This science project teaches students to classify different shapes of leaves.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This project examines whether people's taste perception is influenced by what they see.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Using a toy race car kids create a visual model of the Doppler Effect.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

This science fair project idea explores substances that cause a bubble to last longer.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

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

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

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

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

This science fair project idea explores the egg's thin membrane.

This science fair project idea investigates if webbed feet help a duck (and others) swim.