What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

Demonstrate that insects observe colors and choose favorites. Place colored pieces of construction paper on a flat, glassy surface, observe bug preference.

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

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

This experiment explores the most common colors that appear among a sample of crossbred guppies.

This project examines whether and what associations exist between numbers and letters and colors.

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 determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

In this experiment we will be determining whether birds prefer certain colors of seed.

This science fair project idea determines whether the older population prefers darker, duller colors rather than bright and lush colors.

This science fair project studies which color(s) of flowers butterflies & bees are attracted to and if color plays a role in flower selection for pollination.

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

This science fair project idea explores whether the color of surroundings affects human mood.

Science fair project that determines whether moths are attracted to one color of light more than others.

Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.

Check out this cool science fair project idea on spectrum spinners and investigate how certain color combination can produce other colors.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Compare ability of selected materials to block UV-A radiation. Shine black light though glass at detecting beads underneath. Note color intensity.

Science fair project which determines which colors of light allow plants to produce the most chlorophyll. How are color and light related to each other?

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

The purpose of this science fair experiment is to investigate whether the color of your hair affects how much static electricity is carried.

Check out this cool science project idea to explore the differences in feeding behaviors of birds and if other species of birds also have color preferences.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

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.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Try this fun garden graphing project with your kindergartener this summer to give him a leg up in math and science while spending some valuable time outdoors!

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Learn about how we localize objects and beings in space through sound and about monaural auditory mechanisms and binaural auditory mechanisms.