Plate tectonics

Discussion Director

• Do you think there are life forms under ground
• Well I think there is because they adapted
• What is the result of going down into the Earth?
• The rocks get more denser and it becomes more hotter
• Why did Alfred's theory get rejected?

Discussion director

• What type of device is used to map the ocean floor
• Sonar
• Why do plate tectonics move?
• Plate tectonics are driven by convection currents in the mantle

Summarizer

• When earthquakes appear seismic waves appear
• He took fossils and matched it
• In subduction an ocean floor connects to the mid-ocean ridge that moves away toward the trench
• The earth is cracked like a boiled egg

Connector

• Pressure results from a force pressing on an area .
• Because of the weight of the rock above pressure inside earth increases as you go deeper
• Radiation transfer energy through space
• We are going to a field trip up to the mountains with plate boundaring
• I watched submarine movies

Connector

• Sliding boundary are going the opposite way

Word wizard

• Continents:one of the seven greatest places on earth
• Gradually:little by little
• Satisfactor:to feel happy
• Scarce:difficult to get of find
• Formation:the act of process of forming

Researcher

• The layers increase every day
• Pangea was formed 200 million years ago
• The earth is broken up into 30 pieces called plate tectonics
• It was devolved from different kinds of theory put into one

Now you know about the earths interior