Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

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

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

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

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

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

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Can't make it to the beach? Bring the science of ocean waves home with this fun earth science-related craft.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Construct batteries that make electricity from fruits with this fun science fair project.

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

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

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

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.