This science fair project idea explores whether cats can be trained in the same way that dogs can.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Science fair project that tests whether cats have a preference for organic food.

This experiment evaluates if personality influences whether a person prefers dogs or cats.

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

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.

This science fair project idea explores whether a person's ability to see under very dim lighting conditions diminishes with age.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

This biodiversity project examines the biodiversity in your own backyard.

Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.