This project examines whether people's taste perception is influenced by what they see.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

This science project teaches students to classify different shapes of leaves.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

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

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

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

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

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

This science fair project teaches students about wilting and browning of salad greens.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

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

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

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

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

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.