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

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

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

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

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

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

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

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

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

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

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.

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.

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

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

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

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

In this activity your child will create their very own marble maze!

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

In this activity, your child will be challenged to make a tower using paper cups.

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.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

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

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!