Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

This project examines whether people's taste perception is influenced by what they see.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

In this science fair project, young children notice and track changes in trees throughout the year.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

This super fun science project, perfect for young children, combines crafts, dressing up as animals, outdoor play, and life science learning.

Test your friends to find out if you can replicate the placebo effect's incredible results.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This project determines what category of person is most likely to be ticklish.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

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

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.