Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Examine the effect of pressure on carbonation in soda.

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

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

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

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.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

How powerful is the reaction between baking soda and vinegar? Find out here!

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

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

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.