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Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

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

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.

Science fair project that examines how cell membranes allow the inward and outward flow of materials as demonstrated by eggs.

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

Determine the maximum distance traveled by projectiles launched at an angle. Use some cool math to figure out at which angle your projectile will go farthest.

Show your teen how to analyze the nutritional value of her favorite meals. She may be surprised to find out how healthy--or not--her favorite foods are!

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

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

Check out this fun high school science fair project idea to investigate how the cell membrane regulates what moves into and out of cells.

This experiment explores how microwave radiation affects fungi, bacteria, and plant life.

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

This crafty activity provides a hands-on way for your child to illustrate how the trees look during each season of the year.

This science fair project idea determines the probability of a coin landing heads or tails.

Make edible amber fossils with your second grader to explore the fascinating world of science!

What better way to celebrate spring than with a fabulous flower party? Pack the day with fun flower activities and treats for a truly springalicious event!

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

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.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

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

Future whistleblowers can learn about product safety standards with this exercise in writing and researching.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

This science project allows students to study the psychology of happiness.

How do organic materials become soil? This science experiment measures what materials biodegrade.