The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Examine the effect of pressure on carbonation in soda.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

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

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

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

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

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

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.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

This science project idea examines the effect of microwaving on various objects.

In this science project, the center of gravity is explored.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

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

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

The project investigates which soft drink is worse for your teeth by observing the affect of soft drink on limestone.

Find out whether putting something on top of a plant will inhibit its growth.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.