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

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.

This homemade parachute toy is incredibly easy to build. Plus, it gives kids an excuse to investigate and experiment...the backbone of kindergarten science.

Put those fall leaves to use with this fun art activity. Kids paint and print leaves, to make a beautiful tablecloth, perfect for your next fall celebration.

Help your young learner discover why the insects that a spider eats stick to its web but the spider doesn't.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

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

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

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

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.

Lead your first grader on a nature walk ... with a scavenger hunt-style twist! They'll try to capture photos that correspond to paint chip colors.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Combine science with reading and art to help your first grader create an attractive holiday gift for a beloved friend or relative.

This will encourage your child to utilize their observation skills, develop aesthetic awareness, build artistic drawing abilities and learn about the seasons.

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

Put an oatmeal box, a flashlight, and some construction paper together and you have the makings of an incredibly cool bedroom planetarium!

The fish most kids see is usually filleted, and it's hard to see how it came from a lake or sea. This cool gyotaku activity blends life science with art!

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

This fun activity makes use of pasta shells, paint, and glue make a crab while your child learns about this unique creature.

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

This project examines whether people's taste perception is influenced by what they see.

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

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

Here's a great early reading and science activity for curious children. Learn how to plant your child's name in seeds for a growing writing activity!

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

This is a fun way to introduce kids to the concept of volume, and give them a quick hands-on activity to boot.