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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?

Science fair project that determines whether wireless networks damage living plants. Are WiFi radiation hazardous to your health?

Make a periscope with milk cartons and mirrors! This preschool activity is great for playing secret agent and learning simple physics.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

In this science fair project, students will learn how to calculate the formula for the thermal decomposition of potassium chlorate.

In this activity, your student will be invited to build a chair out of building blocks that is designed to meet the specific size and shape of a small doll or toy figure.

More height, more steep, more speed! This science project investigates whether there is a correlation between the height of the roller coaster and the slope.

Boiling water in a paper cup is possible because of convection and the thermal properties of water and paper. Learn how with this fun science fair project idea.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

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

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Determine how salinity affects the circulation of warm and cold water. Note whether the warm water mixes or forms a layer with cold water.

Demonstrate Newton's laws of motion by examining the relationship between mass, force, and acceleration during free-fall.

This awesome diffraction grating experiment puts high school students' applied math skills to the test by having them calculate the wavelength of laser light.

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

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

This science fair project demonstrates the "power of conformity".

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

This experiment will use computers to examine how the famous Mandelbrot set can be manipulated in fractals.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Dig into the physics of pool to explore some cool applied math and learn about what happens in an elastic collision of equal masses.

This science fair project ideaexplores whether cooking food destroys potential vitamin levels.

Learn whether dark green and leafy veggies tend to have a higher Vitamin C content than lighter green varieties.