1. D47 Spreading Plates

2. D47 Spread Background
Earth’s plates move very slowly. Even the fastest move less than 10 cm per year.
They’ve been moving for millions of years.
As a result their motion has changed the surface of the Earth.
CHALLENGE QUESTION: What happens when Earth’s plates move apart over time?

3. D47 Spread Analysis: Date_____ Name_______________ Hour__
Copy and Answer in complete sentences:
Pangea began as one continent. There are 7 today. How many do you predict will be
In 1000 years (explain)?
In 20 million years (explain)?
Explain 3 things that can happen as plates spread apart. Number them separately.