The Moving Continents An Introduction to Plate Tectonics.

Slides:

Advertisements

Similar presentations

Continents change position over time

Advertisements

To explain what is meant by continental Drift To state why people did not believe Alfred Wegner when he put forward this theory To state the evidence.

1.1 Earth has several Layers.  Denser material sinks  Less dense material rises to the top.

CONTINENTAL DRIFT In 1812, Alfred Wegener presented his scientific theory called “Continental Drift”. It was based on his belief that the continents.

Plate Tectonics The Dynamic Earth.

STRUCTURE OF THE EARTH Noadswood Science, 2011.

Earth Science Chapter 4 Plate Tectonics. Earth's Interior The three main layers of Earth are the crust, the mantle, and the core. The three main layers.

In your SJ, Make a data table like this: Make a data table like this: Hot Characteristics and where you experience it Cold Characteristics and where you.

The Structure of the Earth

The History of Continental Drift and Plate Tectonics.

Chapter 17 Plate Tectonics

Plate Tectonics. Continental Drift l Evidence for Continental Drift A. Theory of continental drift is the idea that the continents have moved horizontally.

Drifting Continents Did Pangea Exist?. The Theory of Continental Drift  A German scientist named Alfred Wegener formed the hypothesis that the continents.

Canada’s Geologic History Introduction. Cross-section of Earth The Earth’s surface is a thin layer of moving plates, floating on more fluid layers of.

Plate Tectonics Review Misc. Plate Tectonics Plate Evidence Earth's Interior Geologic Events Plate Boundaries.

Drifting Continents Chapter 4.3.

Our Earth.  What do you think the earth looked like long ago?

Plate Tectonics.

Guided Notes about Continental Drift

Continental Drift In 1912, Alfred Wegener developed the theory of continental drift, which states that continents are in constant motion on Earth’s surface.

EQ: How do lithospheric plates move and how do they affect the Earth’s surface?

“Continental Drift” I. Early Evidence of Continental Movement: A. Continental Drift: 1. Continental Drift -A hypothesis, which states that continents.

Chapter 7 Earth Science. Evidence for Continental Drift If you look at a map of Earth’s surface, you can see that the edges of some continents look as.

What provides the force that moves the tectonic plates?

Plate Tectonics L.O: To understand how tectonic plates move and the theory of continental drift.

What makes the plates of the crust move?  Continental Drift  Pangea  Mid-Ocean Ridge  Convection  Theory of plate tectonics.

Plate Tectonics Test Study Guide Mary George King Core 1 ScienceMrs.Bannister.

Forces behind change Plate tectonics. Focus Questions How does the movement of the earth’s plates cause land features? What evidence supports the theory.

Theory of Plate Tectonics Plate Tectonics Plate Boundaries Causes of Plate Tectonics.

Plate Tectonics and Continental Drift. Continental Drift Alfred Wegener believed that the continents were once connected. This large continent was called.

Jeopardy Final Jeopardy Earthquakes Boundaries Faults/ Stresses

The Earth and it’s layers

Continental Drift and Plate tectonics

Warm-up #43 Mar. 26  Brainstorming: Will California eventually slide into the ocean? Have continents really drifted apart over the centuries?

m/watch?v=hSdlQ8x7 cuk. The Theory of Continental Drift.

CHAPTER TEN PLATE TECTONICS. Background Information  The Earth is made up of several layers that have different properties and compositions.  There.

 Alfred Wegener – developed the Continental Drift hypothesis  The continents were once joined as one single “supercontinent”  Pangea was the name given.

Plate Tectonics. Exploring Inside the Earth Geologists have used evidence from rock samples and evidence from seismic waves to learn about Earth’s interior.

Chapter 4: Plate Tectonics

Continental drift and plate tectonics. Continental Drift Modern scientists consider the age of the Earth to be around 4.54 billion years Over that time.

“Continental Drift” I. Early Evidence of Continental Movement: A. Continental Drift: 1. Continental Drift -A hypothesis, which states that continents.

8. 2 Continents change position over time. Learning Goals Students will: -explain how the continental drift hypothesis was developed. -explain evidence.

Continental Drift Hypothesis proposed by Alfred Wegener in 1915 The idea that Earth’s continents were once joined in a single landmass and gradually drifted.

Good Afternoon! Please get your science notebook and get out your plate boundaries map and worksheet from Friday.

Canada’s Geologic History

Chapter 17 Plate Tectonics

“Continental Drift” I. Early Evidence of Continental Movement:

Plate Tectonics EQ: How do lithospheric plates move and how do they affect the Earth’s surface?

Plate Tectonics Cornell Notes.

Section 5.2 – Convection & the Mantle

Plate Tectonics.

Plate Tectonics.

Drifting Continents Did Pangea Exist?.

Land Unit: Plate Tectonics

Land Unit: Plate Tectonics

Bellwork Clear everything off your desk except: ILL

Land Unit: Plate Tectonics

Plate Tectonics.

Plate Tectonics.

Continental Drift Pangaea

Science Plate Tectonics

Plate Tectonics.

Jeopardy Layers of Earth That’s Stressful Q $100 Q $100 Q $100 Q $100

Plate Tectonics.

Plate Tectonics Geo Science.

Continental Drift & Plate Tectonics

Continental Drift and Plate Tectonics

Science Plate Tectonics

Plate Tectonics v3 JEOPARDY.

Presentation transcript:

The Moving Continents An Introduction to Plate Tectonics

The Theory of Plate Tectonics l Suggests that the crust is broken into sections called plates l Plates move about the earth l Boundaries of plates are considered faults

Alfred Wegener l First person to suggest the Theory of Continental Drift in 1910 l His hypothesis was that all the continents had once been joined together in a single landmass and have drifted apart. l Science community rejected his theory because of lack of support l Published a book giving support for his theory in 1915

Evidence for Continental Drift: l Same type of fossils found on four different continents l Folded mountains on Africa and South America l Glacial deposits on different continents that should not have l Coal beds in areas that normally would not form, Michigan for example

Why do the plates move? l Convection in the mantle –The heating and cooling of the fluid, –changes in the fluid’s density, and –the force of gravity combine to set convection currents in motion

Words to define l Faults l Mantle l Convection l Core l Crust l Molten l Folded mountains l Hot spots l Earthquakes l Volcanoes

Technology and the Earth’s Changing Surface l Surface mining l Urban development l Farming l Dams l Landfills l Restoring marshlands l Reclaiming spoiled lands

Geological Time l Sedimentary Rocks and Fossils are used to determine the age and geological history of the earth l Rock layers fossils l Relative dating l Petoskey stones

Evolution l Geological time l Fossil l Bone l Embryo l limb