Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

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

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

This science fair project idea investigates how color affects temperature.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

This science experiment tests if dog saliva can really help heal wounds.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

This science fair project idea compares biodiversity between drops of water.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

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

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.