In this science fair experiment about recycling, demonstrate how the wax from a candle can be reused to make another candle.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

In this experiment, recycled objects are separated to demonstrate how mixtures are made and the variance in the physical properties of their ingredients.

This science fair project idea discovers new ways to use recycled materials and encourages new architectural design ideas.

This science fair project idea compares the cuteness reaction between genders.

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

This science fair project idea observes products available in the school cafeteria and waste produced by these products.

In this experiment, the weight of aluminum cans will be compared.

Make a periscope with milk cartons and mirrors! This preschool activity is great for playing secret agent and learning simple physics.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

The aim of this science fair project is to examine the differences between brands of bottled water and analyze consumer preferences through a taste test.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!