Research active ingredients in anti-aging creams. Test skin creams on volunteers, document the effectiveness of the creams with before an after photographs.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Determine whether cats have dominant paws. Observe which paw cat uses to reach for treats, feather, and string. Calculate percentage for two paws.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Science fair project that uses distillation to convert salt water into fresh water.

This science fair project idea explores if male or female humans are more likely to exhibit some form of color blindness.

In this science fair project, students examine how temperature affects sugar transport within a plant.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

This science fair project idea explores if an LED light can be powered by vegetables and/or fruits.

A project to reinforce learning about the layers of the rainforest, rain forest ecosystem, and the greenhouse effect.

This experiment uses a voice recorder to monitor the progression of a message in the telephone game as it deviates from the original.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

The goal of this science fair project is to attempt to build a perpetual motion machine and analyze the Laws of Thermodynamics.

Check out this cool science fair project idea to explore non-chemical means of preserving fruits by using thermotherapy.

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

This science fair project idea explores whether talking to a plant will help it grow.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Learn about the factors that influence group conformity.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

Can cells be frozen? This science fair project provides information to answer this question.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.