Scavenger Hunt! Check out this fun science fair project idea to explore the difference between opaque, translucent, and transparent objects around your house.

What colors can dogs see? Do they only have black and white vision, or can they see other colors too? Find out in this cool science experiment!

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

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

In this science fair project, students make their own rain gauge to measure rainfall.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

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

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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

This science project researches the correlation between barometric pressure and wind velocity.

This science fair project idea produces varying pitches of sound.

In this science fair project on the relationship between distance and time, kids explore the behavior of gravitational acceleration through direct observation.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Air resistance is a crucial factor when designing a parachute. In this science fair project, students find what type of material works best as a parachute.

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