Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

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

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

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

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

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

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

Examine the effect of pressure on carbonation in soda.

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.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

This science fair project idea investigates the difference in reaction times between boys and girls.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

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

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

This basketball project explores the best way to make the perfect shot every time.

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

This science fair project idea determines if the temperature of rubber effects how high it bounces.

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

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

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