In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

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

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

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 basketball project explores the best way to make the perfect shot every time.

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

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Challenge your learner to design and build a city of their own in this creative engineering activity.

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

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

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.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

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