The objective of this free science fair project is to examine the way in which the phases of the moon affect circadian patterns in mammals.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

This science project idea determines how people recognize words while reading.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.

Learn how to convert gravitational potential energy into mechanical energy in this fun 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.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

The project determines determine if a sports drink affects the heart rate of a student athlete during exercise.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

This science project idea examines the effect of microwaving on various objects.

Looking for a way to help your teen explore the fun side of physics? How about a round of Saturday morning cartoons?

Check out this fun science fair project idea to learn how alkaline batteries convert chemical energy to electrical energy?

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

Check out this fun science project idea to get a better understanding of unstable isotopes and the process of radioactive decay of isotopes through modeling.

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

Think about the adaptive utility of an important aspect of our physiology.

Check out this science project idea that will have your kid investigate how dots (also known as pixels) are used to create digital photographs.

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.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.