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

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

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.

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

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.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

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

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.

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

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

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.