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Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

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

Introduce your child to science with something they see everyday--their shadow!

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

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

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

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

This kindergarten science activity will help her explore the changing states of matter which transform an egg from raw to soft to hard-boiled.

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.

Help your kindergarten scientist discover relative size, density, and buoyancy with this fun, pumpkin science project!

Engineers in training can get started with this simple wheel-and-axle construction activity.

Bring the magic and mystery of the night sky to the light of day with this fun constellation art project!

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

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

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

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and 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.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

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

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

Help your kindergarten scientist understand the concept of surface tension with this simple science experiment.

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

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

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

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

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.