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

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

Test your friends to find out if you can replicate the placebo effect's incredible results.

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

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

This project tests the hypothesis that dark colors absorb more heat than light colors.

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

In this project, different brands of microwave popcorn are tested and compared.

This science fair project idea determines which method of hand cleansing is the most effective.

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.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

The project investigates the affect music has on plant growth while experimenting with rock, classical and no music.

In this science fair project, students create their own miniature salt flats at home.

In this science project, the center of gravity is explored.

In this project, waves of vibrations are experimented with using water in glasses.

The project is to investigate yeast fermentation and its results on hand of latex balloons.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

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

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

Science fair project that examines condensation and the conditions needed in order for dew to form.

The project investigates how friction affects motion by using different surface textures.

This science fair project idea investigates whether air has mass and weight.

This science fair project has kids conduct a blindfolded taste test to determine how smell influences our ability to taste foods.

This science fair project idea explores the different properties of matter.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

In this investigation, an oil spill is simulated in a jar to observe the damage that oil spills have on the ocean and ocean life.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.