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!

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.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

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

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.

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

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.

How do organic materials become soil? This science experiment measures what materials biodegrade.

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

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

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

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

This science fair project idea determines if the color of light affects the growth of plants.

Demonstrate how to tell the age of an egg without having to crack it open.

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

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.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

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.

This science project allows students to study the psychology of happiness.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

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

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

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

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.