Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Unit7Review
Unit 7 Review
| Question | Answer |
|---|---|
| Temperature and pressure ____________ from Earth’s crust to the inner core. | increases |
| Ocean crust is made of a dense rock called __________________. | basalt |
| Earth’s __________ ______________ is a dense ball of solid metal. | inner core |
| Earth’s layers starting from the surface are: __________, ____________, ______________, and _________________. | crust, mantle, outer core, inner core |
| The ____________________ is partly made of the crust and mantle. | lithosphere |
| The asthenosphere is part of the ________________. | mantle |
| Earth’s magnetic field results from convection currents in the _________ _______________. | outer core |
| According to Wegener’s hypothesis of ____________ _______________ the continents were once joined in a single landmass. | continental drift |
| _________________ is the supercontinent that existed millions of years ago. | Pangaea |
| Alfred Wegener supported his hypothesis of continental drift with evidence from _____________,_____________________, and _____________. | landforms, fossils, climate |
| Most geologists ______________ Alfred Wegener’s theory of continental drift because he could not provide an explanation for the force that pushes or pulls the continents. | rejected |
| The ____________ ________________ is the longest chain of mountains in the world. | mid-ocean ridge |
| __________________ was used in the mid-1900s to map the mid-ocean ridge. | Sonar |
| In sea-floor spreading, molten material rises from the mantle and erupts along the __________________________________. | mid-ocean ridge |
| _________________________ is the process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle | Subduction |
| Subduction occurs where the oceanic crust bends down toward the mantle at an ________________________________. | ocean trench |
| ____________ _______________ is the theory that pieces of Earth’s lithosphere are in constant, slow motion. | Plate tectonics |
| A ______________________ boundary is the place where two plates move apart. | divergent |
| A _____________________ boundary is the place where two plates come together. | convergent |
| A ______________________________ forms when two pieces of continental crust collide at a convergent boundary. | mountain |
| Predict what occurs.....oceanic/oceanic crust collide | subduction of older, denser crust |
| Predict what occurs.....continental/continental crust collide | mountain formation |
| Predict what occurs.....oceanic/continental crust collide | subduction of oceanic |
| What could occur at a transform plate boundary ? | earthquakes |
| What could occur at a convergent plate boundary on land? | mountain formation |
| What could occur at a divergent plate boundary on land? | Rift valley |
| What could occur at a divergent plate boundary in the ocean? | mid-ocean ridge |
| What could occur at a convergent plate boundary under water? | subduction |
| What three things are shown by a topographic map? | elevation, relief and slope |
| What is the distance between contour lines? | contour interval |
| Describe the slope of the land when contour lines are close together. | steep |
| Describe the slope of the land when contour lines are farther apart. | Gentle slope |
Created by:
lschramme
Popular Earth Science sets