Use playing cards to learn about temperature as well as positive and negative integers in this fourth grade math game.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Master addition, subtraction, multiplication, and division through practice in this fun math game designed for fourth grade!

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Add negative and positive numbers in this fun math card game for fourth graders!

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

To practice place value, here's a fun hands-on activity to get your child flipping through place value with ease!

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.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Learning to identify prime numbers can be tricky. But this fun card game can make memorizing some basic prime numbers a breeze.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

Discover how and which salt melts ice the quickest.

This science fair project idea explores whether white light can be separated into different colors.

This fun calculator exercise will take the mystery away from the machine, and familiarize your child with the functions of a calculator.

Find out whether packaged seeds actually do expire in this new science fair project idea.

Create a fun hands-on game to practice long division, using magnetic numbers on a fridge.