Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

In this project, waves of vibrations are experimented with using water in glasses.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

This science fair project idea determines if family members can recognize one another using only the sense of smell.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Find out whether packaged seeds actually do expire in this new science fair project idea.

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.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

This science fair project idea investigates whether plants can survive being frozen.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Find out whether putting something on top of a plant will inhibit its growth.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.