In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

The goal of this project is to create an exciting topographical map out of dough.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

This experiment uses Rosenberg's Self Esteem Scale to evaluate if there is a correlation between family size and self esteem.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Design a livable building that functions without electricity. Consider necessities, comforts and entertainment. Build a scale model of your design.

Research Earthship buildings. Draft a unique architectural design that repurposes used, discarded radial tires. Build scale model of structure.

This science fair project idea discovers the average number on the Scoville scale that humans can endure in hot peppers before physical signs kick in.

Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.

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.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Design and build a scale model representing living tree architecture. Then build a full-size version using one or more lives trees, and test your creation.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This science fair project idea determines exactly how much of an effect road grade has upon a cyclistâs speed.

This science fair project idea investigates how the shape of an object affects drag.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This project explores whether similar type movie scenes are accompanied by music with similar characteristics.

This science fair project idea examines if there is a reason that musical notes are at the pitches they are.

Take a dive into the candy jar with this yummy science experiment.

Find out if most people can distinguish the difference between tones on different instruments.

In this science fair project, students investigate how different colors influence appetite.

Learn about our response to scents that existed in our environment over evolutionary time and consider why scents might affect our mood state.

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

In this wind tunnel experiment, you'll make a wind tunnel to test lift and airflow on a model plane and explore aerodynamics and the Bernoulli Principle.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

This science fair project idea examines various dead zones and investigates the cause and how it can be fixed.

Research different measurement systems, design your own new or improved system that can measure something difficult to measure with traditional systems.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

This experiment evaluates whether there is a relationship between grade point average (GPA) and dating status.