The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

Determine whether the application of Febreeze will lower the bacterial count.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Think you need a special dehydrator to make your own fruit leather? You can actually make a delicious version of this popular kid's snack in your own oven.

Want a fun way to teach your kid to tell time? Making a plate clock is a great way for him to learn how to tell time in a way he'll actually find exciting.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

Examine the connection between temperature and chemiluminescence.

In this science fair project idea, kids make water dance on the surface of a hot pan with the Leidenfrost Effect.

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.

Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector

The project idea is to understand why chocolate turns white and to determine the fastest way that this process can occur.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

Making candles from old candles is easy. Recycle old candle stubs to make a "new" candle, and teach your child about recycling at the same time!

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

This science fair project idea determines if pancreatic lipase can break down lipids on its own or does it require the assistance of digestive bile salt.

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

Check out this fun science fair project idea to determine if the size of a particle affect the rate or speed of a chemical reaction.

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

This science fair project investigates how temperature of a room affects the burn rate of a candle.