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

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

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

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Determine if gender affects the ability to identify different smells.

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

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

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

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

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

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

Could there be toxic chemicals lurking in the cupboards and closets of your home?

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

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.