This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

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

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

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

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

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

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Use pepper and soap to discover some fun facts about the properties of water.

This science fair project idea measures and compares effects of chemical weathering, specifically carbonation, on different kinds of rocks.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

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

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.