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

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

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

In this science fair project, students use the streak test to tell minerals apart from each other.

The project investigates the affect music has on plant growth while experimenting with rock, classical and no music.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This science fair project idea examines the reason boats are shaped and engineered.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

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

Discover whether a metal will expand under hot water.

This science experiment tests if dog saliva can really help heal wounds.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

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

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

This science fair project idea investigates whether plants can survive being frozen.

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