Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

This project investigates the affect of storage temperature on microwave popcorn.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Discover whether a metal will expand under hot water.

In this science fair project you will make a model of a cell membrane using very simple material.

This science fair project idea explores the egg's thin membrane.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

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

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

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.

The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.

This science fair project idea explores substances that cause a bubble to last longer.

This science fair project idea examines the reason boats are shaped and engineered.

In this project, the affect of acid rain is simulated by the acid, vinegar.

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

This science fair project idea compares biodiversity between drops of water.

This science fair project idea investigates how color affects temperature.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.