How does panning for gold work? Why is it hot at the top of a pool, and colder at the bottom?

The First Great Lesson told us that heavy particles sink down low, and lighter particles float up high, but it’s not just about heavier and lighter. It’s about denser and less dense. In this section, we will set the foundation for learning about density, and explore how things can “sink” or “float” on a solid like sand.

What you’ll learn:

  • How objects settle in different orders according to their density.
  • What makes something sink or float.

Lesson Includes

  • 8 Sections