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

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

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

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

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.

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

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

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!

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.

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!

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

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.

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.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

This winter garden project is just about bomb-proof, and believe it or not, it might even make a great gift. So get craft happy with your first grader!

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

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

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

First graders are learning to think like scientists. What better place to start, then by raising tadpoles? This hands-on activity explores science in action!

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

The objective of this science project is to determine the length of time for different seeds to germinate.

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

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