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How do organic materials become soil? This science experiment measures what materials biodegrade.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Give your budding young observers a chance to discover simple machines at use in their own home.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

In this activity, your kid will watch coal turn into crystals right before her very eyes, and learn some science along the way!

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

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

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Teach your child how butter is created by shaking up cream the old-fashioned way.

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

Make a spring collage with your child to get them outside and those creative juices flowing!

Take advantage of the spring and summer sun in this arts and crafts activity that has your learner creating pretty flower prints.

This science fair project idea explores which fruit molds the fastest.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

This science research project challenges students to think of more effective lobster farming methods.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

This science project teaches students to classify different shapes of leaves.

This science fair project teaches students the differences between fruits and vegetables.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

Many ancient cultures used the rising or setting sun to create calendars. Observe the setting sun once a week to come up with your own solar calendar!