How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

This science fair project idea investigates if fats add to the flavor of food.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

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

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.

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

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

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

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

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