Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Test your friends to find out if you can replicate the placebo effect's incredible results.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

This science fair project idea determines the probability of a coin landing heads or tails.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

Do you think heat can affect a plant's growth rate?

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

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

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

Find out whether matte or shiny nail polish lasts longer.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

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

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

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

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

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

In this fun activity, your child will create their very own solar oven to bake s'mores!

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.