Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

Teach your child about healthy foods and how to make a meal that is good for them with this fun activity that you both can do together.

Challenge your young dinosaur lover to examine dinosaur footprints and then create their own dinosaur fossil in this hands-on activity.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

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

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

Your child will create her own falling snowflakes using white paper and glue them over a tree, so it appears as if they are falling from the sky.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Who needs paint, glitter, or crayons when you have natural art supplies right outside your front door?

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

Encourage your kindergartener to investigate and chronicle the weather she observes during the coldest months of the year.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

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!

This science fair project idea experiments with spinning color wheels and optical illusions.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.