Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

This experiment provides a graphic illustration of the chemical reaction that occurs when you activate a hand warmer.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

First graders are learning to think like scientists. What better place to start, then by raising tadpoles? This hands-on activity explores science in action!

The objective of this project is to evaluate whether a top will spin at different rates during different phases of the moon.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Check out this fun science fair project idea to measure bacterial colonies from door handles and explore the effectiveness of different cleaning agents.

This science fair project idea investigates whether plants can survive being frozen.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

In this experiment two environments will be compared: a room with interior design that uses correct Feng Shui versus one with incorrect Feng Shui.

This science fair project idea explores whether a person's ability to see under very dim lighting conditions diminishes with age.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

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

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

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

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

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Science fair project that demonstrates that rotting food attracts insects that lay eggs on it.

Measure the porosity of rocks by submerging them in water. Measure how much water each rock "drank," by measuring the difference in water volume.

Science fair project that tests whether cats have a preference for organic food.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

This science fair project idea tests the efficiency of short term memory.

Get a cool middle school chemistry project idea on how to determine whether a physical or a chemical change has taken place.

This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.