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

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

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

This science fair project examines how seeds hitchhike on animals and clothing.

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

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

This science fair project idea explores which fruit molds the fastest.

What combination of cloth and stain will be the easiest for removing stains? Test and experiment!

In this project, a mnemonic is used to test how it increases memory.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

This science fair project teaches students the differences between fruits and vegetables.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

This science fair project idea explores whether talking to a plant will help it grow.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

This science project teaches students to classify different shapes of leaves.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

This biodiversity project examines the biodiversity in your own backyard.

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

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

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

This science fair project idea experiments with spinning color wheels and optical illusions.

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

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.

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

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.