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Learn about the great horned owl of Yellowstone National Park, a bird so big and mean that it has the nickname, "tiger owl."

Great Horned Owl

When you see those sunscreen "protection levels," what does that really mean?  Try this experiment to find out.

Sunscreen Experiment

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Does Skin Thickness Decrease Fruit Spoilage Rate? 

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

How Does Salinity and Temperature Affect the Density of Water?

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

Dig This: Biodegradation

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

Clear or Opaque?

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

Do Packaged Seeds Expire?

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Clay Enzyme

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Floating Paper Clip

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Polymer Crystals vs. Ice

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Principles of Air Pressure

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Throwing a Baseball

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Hero's Engine: Example of Newton's Third Law

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Candy Science Experiments: Toffee!

Help your child learn about animal classification with this fun and delicious activity.

Delicious Classification: Vertebrates and Invertebrates

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Too Cold To Snow?

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

Center of Balance

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

How Much Sugar?

Cleaning can be a chore, but not with this sudsy experiment!

Homemade Cleaners: Getting Squeaky Clean

In this lesson, you will use “The Very Hungry Caterpillar” to teach students about the butterfly life cycle. After listening to the story read aloud, students will use their knowledge to create their own butterfly life cycles! 

The Very Hungry Caterpillar: A Butterfly's Life Cycle

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Deer Behavior

Discover flight initiation distance as you play around in the park with this fun bird watching project!

Bird Space

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Work and Energy

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

How to Demagnetize a Magnet

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Ocean Food Web

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