Design and build an invention inspired by Rube Goldberg's designs. Build your invention. Test the machine, write a detailed report.

Will male or female hair grow faster? Find out in this science fair project idea!

Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

In this science fair project caffeine will be extracted from Gunpowder Green Tea, illustrating the isolation of a naturally occurring product from a plant.

Science fair project that examines the effects of soap on the surface tension of water. How does soap affect the surface tension of water?

Examine the impact of insecticides on plant growth.

This experiment examines if space objects become round after reaching a certain mass.

Find out whether packaged seeds actually do expire in this new science fair project idea.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

Compare the ignition rates of various types of flame-retardant materials.

This project compares different liquids and the freezing, melting and boiling points of liquids.

This experiment will explore whether fractals really repeat themselves infinitely.

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

This science fair project idea explores if people with cool skin tones prefer cool colors and people with warm skin tones prefer warm colors.

Science fair project that explore how compound motion works by examining how gravity is affected by horizontal force.

This experiment will explore if and where fractals can be found in the natural world.

How do organic materials become soil? This science experiment measures what materials biodegrade.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Look at people's face shape. Do you think their face shape affects your perception of kindness? Find out more in this science fair project idea!

Discover which method for odor removal words the best for stifling refrigerator odors.

Determine which video game elevates the heart rate best and burns the most calories.

In this science fair project, young children notice and track changes in trees throughout the year.

Explore which teeth-whitening products work best - Whitestrips or Whitetrays.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!