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?

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

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

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

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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

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

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

In this project children practice the scientific method while playing with puffy paint.

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

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

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

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

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.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Using a toy race car kids create a visual model of the Doppler Effect.

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.

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