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

This science fair project idea demonstrates that plants give off water.

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

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.

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.

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

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

This science fair project idea investigates how the shape of an object affects drag.

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

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

This science fair project will help students learn about non-vascular plants, such as mosses.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science fair project teaches students about wilting and browning of salad greens.

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

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

This science fair project idea determines which method of hand cleansing is the most effective.

Do different types of oil mix or stack? Find out in this science fair project idea!

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

This science fair project idea investigates if fats add to the flavor of food.

Here's a pressed leaf card project that puts science and writing together for your second grader.

Help your kindergarten science maven explore the water cycle without getting everything wet.

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

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

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

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.