Warm Up

What happens to temperature as you move from the Earth’s surface to the center of the Earth?

What are the main layers of the Earth? (You should know this from elementary school)

Warm Up

1. What is meant by the term “plasticity?”

2. Which layer of the Earth has a part that may considered to be “plastic-like?”

3. How would the movement of the plastic-like layer impact the layer on top of it?

4. What factors determine the amount of movement of the asthenospere?

Layers Warm Up

1. What happens to pressure as you move from the crust to the core? Why?

2. Which layer of the Earth has the largest radius, the core, mantle or crust?

Warm Up

1. What happens to temperature as you move from core to crust?

2. What happens to pressure as you move from crust to core?

3. Compare and contrast oceanic crust and continental crust. (use your book if necessary)

Oceanic vs. Continental Crust

Ocean Crust More dense Thinner Made mostly of basalt

Continental Crust Less dense Thicker Made mostly of granite

Warm Up

What was Holmes’ theory? What is convection? How does convection in the mantle

work?

Boundary Warm Up

1. At what kind of boundary do plates move together?

2. What happens at a divergent ocean boundary?

3. What happens at a transform boundary?

Warm Up

Read pages 200-201 and explain how magnetic reversals help to support the theory of seafloor spreading.

Warm Up

1. What is the Ring of Fire?2. What happens when an ocean plate

pushes into a continental plate?3. What is the mid-Atlantic Ridge?

Warm Up

1. Where is the seafloor oldest? Youngest?

2. What happens to the Earth’s magnetic field every few million years?

3. What is the Mid-Atlantic Ridge?4. What is seafloor Spreading?

Review Warm Up

1. What kind of rocks form under high temperature and pressure?

2. What does superposition mean?3. What is an intrusive igneous rock?4. What is the core of the Earth made

of?5. The movement of tectonic plates is

caused by what motion in the asthenosphere?

More Review Warm up

1. How can you find the relative age of a rock?

2. How are sedimentary rocks form?

3. How is the crystal size in an igneous rock determined?

4. How are index fossils on different continents used as evidence of plate tectonics/

5. How is plate tectonics like ice cubes floating across the surface of a punch bowl?

Warm Up

1. What drives the action of plate tectonics?

2. What makes Hawaii an unusual volcano?