In this project children practice the scientific method while playing with puffy paint.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

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

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!

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

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

First graders are learning basic addition and subtraction math facts. Practice in the sandbox with this fun outdoor math activity!

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 first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

In first grade, children are introduced to fractions. Here's a recipe that combines fraction practice with winter fun and lets kids actually paint the snow!

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.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

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

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

This snowman's not abominable, he's adorable! Your child can bring her very own snowman to life while practicing how to create texture.

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

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

This science fair project idea explores how length affects the weight a bridge can hold.

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

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Hunt for natureâs treasure, the many different products made by trees!

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.