Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

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

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

How powerful is the reaction between baking soda and vinegar? Find out here!

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This science fair project idea examines which type of insulation holds in the most heat.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

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

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

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

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

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

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

This project compares the strength of one, two, and three-ply toilet paper.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

This science fair project teaches students the differences between fruits and vegetables.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

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!

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

This science fair project idea investigates the difference in reaction times between boys and girls.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Science fair project that examines condensation and the conditions needed in order for dew to form.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.