The Cosmological Principle

Learning Target

I can construct an argument based on evidence to support the Big Bang theory. This includes but is not limited to the cosmological principle, cosmic microwave background radiation, and space-time expansion.

Warm-Up

1 Let's practice saying these words:

Cosmological

Isotropic

Homogenous / Homogeneity

2. Let's look up what those words mean. Find the definition for all three on Google

Mini-Lesson

Please watch the following video and take notes using your handout Links to an external site..

Closer

What two terms are the cosmological principle built on and what do they mean?

How do you think the cosmological principle relates to the Big Bang?