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In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Leadership is a word that can hold many meanings. In this activity, your child will define the word "leadership," learn more about a leader they admire, and reflect on their leadership. Finally, your child will reflect on how they too are a leader!

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

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

Inspire a love for the written word by creating an illustrated nature poetry book with your kids.

Make environmentally friendly, chemical-free toothpaste using one of the most common, inexpensive pantry staples in the American kitchen: baking soda.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Find out which type of sponge holds the most water.

This simple experiment serves as an introduction to the greenhouse effect.

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

Is your fifth grader trying overnight camp this summer? If so, prepare your child for writing a letter home with this activity!

There's more to corn than the sweet yellow kernels. This easy craft project shows you and your kid how to make pretty corn husk flowers using just a few tools.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

This project is a great way to explore variations in how to paint using watercolor.

Some fossils have been been preserved for billions of years! Help your kid understand how fossils are created and preserved with this crafty project.

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

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Help your second grader embrace his "green" side by recycling empty citrus peels into fruity ice cream bowls!