Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

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

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

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

In this experiment, you will be making your own paper flashlight by conducting electricty with graphite.

This optics-based science fair project idea teaches kids about real and virtual images with a mind-bending candle illusion inspired by Pepper's Ghost.

This science fair project investigates why the number of visible stars changes from place to place.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

Looking for a fun way to help your teen personalize her room? Create a lamp shade decorated with her silhouette portrait for a one of a kind art object.

This cool middle school science fair project idea helps students explore the role phototropism plays in the growth of green plants.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Help young learners discover why catÃs eyes glow in the dark with this simple experiment

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

In this fun art exercise, kids practice seeing multiple shapes and colors inside a water-filled glass and recreate them as a still life using colored paper.

Create a beautiful tissue paper lantern with your child to help brighten up a special occasion.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

Help you child create an inspirational quote board out of foam that will motivate her to produce her best work and maintain a positive attitude.

Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

This project is about after-images and what possibly affects them.

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

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Learn how to relight a candle by lighting the vaporized wax in the smoke, and test how various kind of wax and candle brands relight differently.

Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.