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.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

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.

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

This science fair project idea determines if the color of light affects the growth of plants.

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.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Find out which type of sponge holds the most water.

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.

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

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Challenge your learner to design and build a city of their own in this creative engineering activity.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Discover how and which salt melts ice the quickest.

This science fair project idea identifies trees using a dichotomous key.

This project examines what types of objects burn and which burn faster and cleaner.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.