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.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

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

This science fair project idea investigates which objects float and sink in honey, water, and oil.

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

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

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!

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.