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

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

Children learn the six parts of a plant...but do they really understand? Try this plant-themed meal plan to bring school science into the home.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

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

Conduct a simple experiment with your child to study how dirt tracks change as they age in this 1st grade science activity.

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!

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

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

Here's a simple and fun kindergarten or first grade gardening activity: grow a miniature container garden in a paper egg carton. Great for kinesthetic learners.

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!

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

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.

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.

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.

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.

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

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

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

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

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

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

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

Help your first grader design and create his very own bird feeder out of an empty milk carton.

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

Create a habitat for a butterfly right in your own backyard, and build your first grader's science knowledge while you're at it.

Study science with your first grader in this arts and crafts activity that models the reason why fall leaves change color with some paint and crayons.