This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

This science fair project idea investigates how images are influenced by changes in light.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

Explore convex and concave objects and how they reflect light.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

This science fair project idea determines if the color of light affects the growth of plants.

Store bowls of fresh fruit in differently lighted environments. Contrast freshness based on appearance.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

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.

Explore this fun middle school science fair idea to learn about photosynthesis and the key role of light in the growth of green plants.

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 investigates which type of light bulbs are the best at producing flattering photographs in both flash and non-flash conditions.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

Science fair project that determines how your mirror image differs from your actual image and how virtual images are constructed.

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.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

In this project, sunlight is blocked from a leaf in order to see the affect that sunlight has on leaves.

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

Science fair project which compares the rates of photosynthesis for various light sources. Which type of light will be best for photosynthesis and why?

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Illustrate the idea of light refraction with this exciting and mystifying experiment.