Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

This science fair project idea examines which type of insulation holds in the most heat.

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

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

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Explore if planting seeds in a certain direction will affect how fast it germinates.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

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

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

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

This science fair project idea determines the most effective method of preserving food.

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.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

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

Find out which kind of bubble wrap fares best when put in impact.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!