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In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

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.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

Determine the maximum distance traveled by projectiles launched at an angle. Use some cool math to figure out at which angle your projectile will go farthest.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

Check out this cool science fair project idea to explore the relationship between pulse rate and blood pressure in healthy people.

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

Research information on vitamin content in foods, Examine the effect of vitamins, test organic samples of fruits, meats, grains for vitamin content.

This science fair project idea determines the probability of a coin landing heads or tails.

This science fair project studies which color(s) of flowers butterflies & bees are attracted to and if color plays a role in flower selection for pollination.

This science fair project idea focuses on the use a conductivity device to determine the ionic concentrations of hard water.

Learn the chemistry and physics of the brain, how our nervous system work. Demonstrate that the brain is an electrical and chemical machine.

This project concerns activity happening millions of miles away, on the sun.

The purpose of this science fair project is to learn which substance best preserves apples. Learn about enzyme interactions in fruit and scientific processes.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

Observe trends in the properties of writing materials over past 5000 years and extrapolate to future time. Prepare a table that compares writing material.

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

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Learn how to convert gravitational potential energy into mechanical energy in this fun science fair project idea.

This science fair project idea determines what household items are good conductors of electricity.

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

This science fair project idea examines whether people can decode scrambled messages.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?