Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

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

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

The project examines absorbent polymers absorbency in disposable diapers and their unique ecological problem to the environment.

The project investigates how friction affects motion by using different surface textures.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

In this project, the affects of vitamin E are observed on a rose petal.

In this project, the fingerprints of family members are compared to determine if people from the same family have similar fingerprints.

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

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.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

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 purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Help your child make a beautiful homemade sandcastle that will last!

This science fair project idea examines liquids of different densities.

The project determines which laundry detergent is best for cleaning clothes.

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.

In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.

Nature is the greatest teacher, and you can help facilitate the lesson! Here's how to create a supply backpack to get your kid ready for science action!

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

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

In this project, a model of a submarine is built to simulate the buoyancy and displacement of water and air.

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

In this project, the affect of acid rain is simulated by the acid, vinegar.

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

This science fair project idea researches the effects of acid rain on plant growth.