In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Slime mold is no longer classified as fungi! So what is it? In this cool science fair project, learn how to grow slime mold and explore its behavior.

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.

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

In this wind tunnel experiment, you'll make a wind tunnel to test lift and airflow on a model plane and explore aerodynamics and the Bernoulli Principle.

Find out whether packaged seeds actually do expire in this new science fair project idea.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

Which type of sunglass lenses gives you the best protection from the sun's harmful UV rays? Find out in this cool science project!

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

In almost every preschool classroom is a sensory table. Learn how to make one at home!

In this science fair project idea, kids make water dance on the surface of a hot pan with the Leidenfrost Effect.

Here's a simple science activity that will help your child better understand how wells bring us water.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

This cool electricity project teaches kids how connecting batteries in series vs. parallel circuits can contribute to different levels of voltage and amperage.

This science fair project explores how salt and sugar affect the melting rate of ice in water.

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

Test whether plants can grow without sunlight and water.

This experiment uses personality assessments to evaluate if certain personality traits are more common in people with unusual first names.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.