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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.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

This project explores ways to prevent static electrical shocks.

In honor of Black History Month, this activity encourages your child to focus on African American inventors, and do a little inventing of his own.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

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

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

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.

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 builds models of various types of bridges and then determines which bridge design is the strongest.

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

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Examine the effect of pressure on carbonation in soda.

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

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

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

Have your child kick off their summer vacation by making a miniature water slide!

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

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

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

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

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

Make a spring collage with your child to get them outside and those creative juices flowing!

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

This basketball project explores the best way to make the perfect shot every time.

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

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