What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

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!

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

Forget store-bought dyes this Easter: color your Easter eggs with natural dyes made with ingredients from your own kitchen in this 1st grade activity.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Satisfy your sweet tooth with this easy summer activity! Make homemade ice cream and let your child practice his science skills.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

Make edible amber fossils with your second grader to explore the fascinating world of science!

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

Here's a pressed leaf card project that puts science and writing together for your second grader.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.