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This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Use pepper and soap to discover some fun facts about the properties of water.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

This science fair project idea examines whether boys and girls differ in reflexes.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Construct and experiment with a periscope using reflected light rays to gather an image.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

This science experiment tests if dog saliva can really help heal wounds.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Start your toy engines -- this is going to be a fast and friction-filled race!