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Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Learn how the focal length of a lens affects a magnifying glass's magnifying power in this cool science fair project idea for 8th grade.

This science fair project investigates how temperature of a room affects the burn rate of a candle.

This science fair project idea teaches about the size of two different systems: the solar system and an atomic system.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

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

Do you think heat can affect a plant's growth rate?

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

This science fair project idea determines what household items are good conductors of electricity.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?

Learn about the greenhouse effect- and get great science fair experiment ideas. Read more.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

How fast is the wind blowing? This science experiment provides step-by-step instructions to help you answer this question.

What colors can dogs see? Do they only have black and white vision, or can they see other colors too? Find out in this cool science experiment!

This experiment strives to determine if tracking of conservation habits will lead to reductions in a family's electricity and water bills.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

The objective of this science project is to determine the length of time for different seeds to germinate.

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

Science fair project that cultivates slime mold and monitors the stages of its development.

The objective of this experiment is to conduct a ganzfeld experiment and determine if extrasensory perception (ESP) can be observed.

Science fair project that evaluates how well clothing fabrics block UV radiation by examining the properties of different fabrics.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

This science fair project idea experiments with spinning color wheels and optical illusions.

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Construct batteries that make electricity from fruits with this fun science fair project.

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

Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.