Plate Tectonic Questions 1. Which plate is the thinnest? Thickest? 2. Which plate boundary to subduction zones exist? 3. What area must exist to sustain a volcano? 4. What type of boundary is crust neither created or destroyed? 5. Which plate is less dense? Most Dense?
Plate Tectonic Questions 6. Which layer has a convection current in it? 7. Which layer of the earth is brittle and rigid? 8. Which layer is plastic-like and flowing? _ 9. Which layer of the Earth’s interior is liquid?
Plate Tectonic Questions 10. Which layer of the Earth’s interior is solid? 11. What causes the plate of the earth (lithosphere) to move? 12. How are the lithosphere and the asthenosphere similar? 13. What instrument is used to determine the epicenter of an earthquake?
Weathering, Erosion and Deposition
Weathering The breaking down or disintegration of substances such as rocks and minerals by physical, chemical or biological processes
Weathering Weathering acts slowly, but over time will break down the largest and hardest of rocks mechanical weathering – rock is physically broken down into smaller pieces by processes chemical weathering – process that breaks down rocks through chemical changes
Weathering- Mechanical
Weathering - Chemical
Erosion The movement of sediment or soil from one location to another by means of water, ice or wind
DEPOSITION When particles carried by water, ice, or wind are deposited (dropped) in another location
Is it Weathering, Erosion or Deposition? 1. Flood water pounding against a canyon wall and wearing it down Weathering
Weathering, Erosion or Deposition 2. Rain washing away soil from a hillside Erosion
Weathering, Erosion or Deposition 3. Layers of sediment forming at the bottom of the ocean Deposition
Weathering, Erosion or Deposition 4. A mudslide flowing down a steep hill Erosion
Weathering, Erosion or Deposition 5. Glaciers dropping rock and sand to form terminal moraines Deposition
Weathering, Erosion or Deposition 6. Waves dropping sand on the beach Deposition
Weathering, Erosion or Deposition 7. Caves being formed by acid rain dissolving underground limestone Weathering
Weathering, Erosion or Deposition 8. Deltas forming at the mouths of rivers Deposition
Weathering, Erosion or Deposition 9. Water getting into cracks, freezing and breaking the rock and pavement apart Weathering
Weathering, Erosion or Deposition 10. Wind blowing sand from one location to another Erosion
Weathering, Erosion or Deposition 11. Wind blasting sand at rock and carving out arches Weathering
Weathering, Erosion or Deposition 12. Glaciers scraping rocks across the earth’s surface Weathering
Weathering, Erosion or Deposition 13. Muddy water being carried away by a fast-moving river Erosion
Weathering, Erosion or Deposition 14. Rocks being made smooth by tumbling across a streambed Weathering
Weathering, Erosion or Deposition 15. Ponds filling up with sediment and becoming marshes Deposition
Weathering, Erosion or Deposition 16. Flood waters moving soil from one location to another Erosion