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Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Determine if gender affects the ability to identify different smells.

Teach your child the meaning of recycle and reuse by repurposing plastic spoons as plant markers for your vegetable garden.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

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

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

The objective of this science project is to determine the length of time for different seeds to germinate.

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.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

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

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.