1. Warm-Up January 17 Write What You Know!
Write everything you know about the prompt below for five minutes, try for at least 3-4 complete sentences.
Why do the tectonic plates move around on the surface of the Earth? What causes this to happen?

2. No school on Monday, January 20
Martin Luther King Day
Quiz on Tuesday, January 21

3. Convection and Drift
Notes (1.2 – 1.3)

4. Heat Transfer Review: 3 types of heat transfer:
Radiation: transfer by EM waves through space
Conduction: transfer by direct contact
Convection: transfer through movement of a fluid (liquid, gas, plastic solid) in convection currents

5. Convection in Mantle What causes the tectonics plates to move?
The heat from our core and great pressure causes solid mantle rock to flow
Plastic: solids that can flow like fluids

6. Continental Drift Theory of Continental Drift
1910 Alfred Wegener, but not accepted for over 50 years. Why?
Pangaea: 300 mya, all of today’s continents were once part of a single super-continent, then drifted apart
We now know this is a cycle, that continents are constantly either coming together or breaking apart

8. Continental Drift Evidence from Land Features Evidence from Fossils
Continental shapes, mountains, fossil fuel deposits
Evidence from Fossils
Animal fossils, plant fossils, microbe fossils
Evidence from Climate
Fossil climate evidence shows once tropical areas are now polar