When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

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

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

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

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

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

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.

Is it a square or a circle? See if you can trick your friends with this zany science project!

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

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

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

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

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.

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

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.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

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

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

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

This science fair project teaches students about wilting and browning of salad greens.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Start your toy engines -- this is going to be a fast and friction-filled race!