Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Measure the densities of various fruits and vegetables to determine if there is a relationship between density and nutritional value.

Make homemade lemonade in a baggie with your preschooler with this fun and easy recipe.

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

This science fair project idea quantifies growth of seedlings at various pH levels.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Compare the amount of ozone in various locations with this science fair project that will have your kid create her own ozone strips!

Create a colorful, informative display that illustrates the properties of blood cells. Prepare slides using samples of fresh raw beef or chicken bone marrow.

This experiment will explore if magnetism has any effect on the regeneration abilities of flatworms.

This experiment tests which gender is better at catching how a magician performs his tricks.

This experiment explores how listening in to a one-sided conversation affects concentration.

Try this fun garden graphing project with your kindergartener this summer to give him a leg up in math and science while spending some valuable time outdoors!

In this project, the affects of vitamin E are observed on a rose petal.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

This experiment will explore the best way to create a perfect soft-boiled egg.

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

Are you ready to pilot your own airplane? Well, then take to the skies with this high-flying project!

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

2011 VIRTUAL SCIENCE FAIR ENTRY: The objective of this science fair project is to develop a microcontroller and circuit that can conduct electricity.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

Boiling water in a paper cup is possible because of convection and the thermal properties of water and paper. Learn how with this fun science fair project idea.

Science fair project that determines whether brain size is correlated with intelligence.