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In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Transform your uncomfortable wooden shoes into charming mini planters!

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

In this experiment you will replicate the mummification process by making a hot dog mummy.

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

Plants and light seem to be good buddies, but how far does the friendship really go?

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

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

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

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

This classic children's game demonstrates how sound travels through air vs. through a solid.

Make all-natural dye from vegetables to create gorgeous homemade play-silks!

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.