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CRCT Question

The intensity of an earthquake is partly determined by the Gap hypothesis Amount of damage it causes Fault type Seismic waves. CRCT Question. Corny Joke of the Day. How does the ocean pay it’s water bills? With sand dollars!. Can you categorize into three groups . earthquakes.

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CRCT Question

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  1. The intensity of an earthquake is partly determined by the Gap hypothesis Amount of damage it causes Fault type Seismic waves CRCT Question

  2. Corny Joke of the Day How does the ocean pay it’s water bills? With sand dollars!

  3. Can you categorize into three groups earthquakes divergent slide transform convergent tension Apart squeezing Mid-ocean ridge mountains compression Shearing

  4. True or False

  5. Study Guide Answers

  6. 1. Describe the following types of plate boundaries, the stress associated with each one of them, and what types of events or features can occur at the boundary

  7. Convergent • Compression (squeezes) • Collide • Mountains

  8. Divergent • Tension • Apart • Mid-ocean ridges/rift valley

  9. Transform • Shearing • Slide horizontally • Earthquake

  10. 2. What is the mid-ocean ridge and at what type of boundary does it occur? An area where molten material is coming up from two OCEANIC plates pulling apart. Shield volcano….slow moving lava Divergent boundary

  11. 3. What is deformation Any change in the volume or shape of Earth’s crust

  12. 4. What is stress, and what does it cause? Stress is a force. It causes deformation because it will change the volume and/or density Tension, compression, shearing

  13. 5. List and describe the three different types of stress that can occur to the Earth

  14. Compression • Squeezes the rock • Convergent boundary • Builds mountains (folds)

  15. Tension • Rocks being pulled apart • Divergent boundary • Oceanic=mid ocean ridges • Continental=rift valleys

  16. Shearing • Slides • Rock will bend and break • transform boundary • Earthquakes

  17. 6. Where do earthquakes occur? Near edges of plate boundaries

  18. 7. What is a fold? Bending of Earth’s crust *Produces mountains

  19. 8. What is a fault Breaking of Earth’s crust *Produces earthquakes, mountains, rift valleys

  20. 9. Explain what the magnitude of an earthquake and how is it determined. Magnitude is the Earthquake’s strength based on seismic waves. Measured using the richter scale…which uses a seismograph

  21. Reminder Intensity= amount of damage the earthquake causes!

  22. 10. What scale is used to measure the strength of an earthquake Richter scale

  23. 11. List and describe the three types of seismic waves All three are waves of energy from earthquakes that will travel through the Earth

  24. P waves • Primary Waves • Travel the fastest • Travel through solids, liquid, and gases

  25. s waves • Secondary Waves • Come in after primary • Travel through solids

  26. l waves • Surface Waves • Travel the SLOWEST • On the surface • CAUSES THE MOST DAMAGE

  27. 12. What is the difference between the epicenter and focus? Focus is BELOW the Earth Epicenter is ABOVE it on the surface *Where the fault takes place

  28. 13. Give 3 examples of way to protect yourself during an earthquake If inside: crouch under a table or desk

  29. 14. Why can earthquakes not be predicted by geologist? They can’t be sure when and where stress will be released along the fault

  30. 15. Where do volcanoes form? 1. Along convergent boundaries where the plates are subducting…. 2. Hot spots (Hawaii)

  31. 16. Why does magma flow up through rock? Because it’s less dense then the rock around it

  32. 17. What type of eruption will a volcano with magma high in silica cause? What’d you find?!?!?!?!

  33. 18. What is the ring of fire? A belt of volcanoes around the pacific ocean

  34. 19. What can you conclude about the relationship between earthquakes and volcanoes? If small earthquakes in the area near a volcano, they will infer that the volcano is probably about to erupt.

  35. Survivor

  36. Question When plates slide past one another this is what type of boundary?

  37. Answers Transform

  38. Question When plates collide this is what type of boundary?

  39. Answers Convergent

  40. Question What happens to a rock if it’s undergoing shearing?

  41. Answers Bends and breaks

  42. Question What is it called when that Earth BENDS?

  43. Answers Folding

  44. Question Squeezing an object describes what kind of stress?

  45. Answers Compression

  46. Question Before Lava hits it is called:

  47. Answers Magma

  48. Question A volcanic belt that circles the Pacific Ocean is called:

  49. Answers Ring of Fire

  50. Question What does stress cause?

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