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Vocabulary Test: Chapter 1A
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inner core:a ball of hot,solid metals at the center of the earth
outer core:layer of liquid metals that surrounds the inner core
mantle:Earth's thickest layer, measuring nearly 2900 kilometers
crust:thin layer of cool rock that surrounds the earth
continental crust:crust that includes all continents and some major islands
oceanic crust:crust that includes all the ocean floors
lithosphere:"stone" - most rigid of all earth's layers
asthenosphere:"weak" - layer of hotter, softer rock in the upper mantle
tectonic plates:the lithosphere is broken into many large and small slabs of rock
continental drift:hypothesis that Earth's continents were once joined in a single landmass and gradually moved or drifted apart
pangea:theory that the continents had once been joined in a huge supercontinent
mid ocean ridges:underwater mountain ranges
convection:energy transfer by the movement of a material
convection current:motion that transfers heat energy in a material
divergent boundary:occurs where plates move apart
convergent boundary:occurs where plates push together
transform boundary:occurs where plates scrape past each other
spreading centers:divergent boundaries in the ocean
rift valley:gap that forms as mid ocean ridges widen
magnetic reversal:switch in the direction of the Earth's magnetic poles
hot spots:places where heated rock rises in thin columns from the mantle
subduction:when one plate sinks beneath another
continental continental collision:occurs where two plates carrying continental crust push together
ocean oceanic subduction:occurs where one plate with oceanic crust sinks under another plate with oceanic crust
oceanic continental subduction:occurs when ocean crust sinks under continental crust
Vocabulary Test: Chapter 1A
Across:1. | thin layer of cool rock that surrounds the earth | 4. | occurs where plates scrape past each other | 6. | energy transfer by the movement of a material | 8. | motion that transfers heat energy in a material | 10. | gap that forms as mid ocean ridges widen | 12. | underwater mountain ranges | 13. | "weak" - layer of hotter, softer rock in the upper mantle | 14. | crust that includes all the ocean floors | 17. | "stone" - most rigid of all earth's layers | 18. | hypothesis that Earth's continents were once joined in a single landmass and gradually moved or drifted apart | 19. | the lithosphere is broken into many large and small slabs of rock | 20. | occurs where plates move apart | 21. | divergent boundaries in the ocean |
| | Down:2. | when one plate sinks beneath another | 3. | a ball of hot,solid metals at the center of the earth | 5. | switch in the direction of the Earth's magnetic poles | 6. | crust that includes all continents and some major islands | 7. | occurs where one plate with oceanic crust sinks under another plate with oceanic crust | 9. | layer of liquid metals that surrounds the inner core | 11. | places where heated rock rises in thin columns from the mantle | 15. | theory that the continents had once been joined in a huge supercontinent | 16. | Earth's thickest layer, measuring nearly 2900 kilometers |
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© 2013
PuzzleFast.com, Noncommercial Use Only
Vocabulary Test: Chapter 1A
Across:1. | thin layer of cool rock that surrounds the earth | 4. | occurs where plates scrape past each other | 6. | energy transfer by the movement of a material | 8. | motion that transfers heat energy in a material | 10. | gap that forms as mid ocean ridges widen | 12. | underwater mountain ranges | 13. | "weak" - layer of hotter, softer rock in the upper mantle | 14. | crust that includes all the ocean floors | 17. | "stone" - most rigid of all earth's layers | 18. | hypothesis that Earth's continents were once joined in a single landmass and gradually moved or drifted apart | 19. | the lithosphere is broken into many large and small slabs of rock | 20. | occurs where plates move apart | 21. | divergent boundaries in the ocean |
| | Down:2. | when one plate sinks beneath another | 3. | a ball of hot,solid metals at the center of the earth | 5. | switch in the direction of the Earth's magnetic poles | 6. | crust that includes all continents and some major islands | 7. | occurs where one plate with oceanic crust sinks under another plate with oceanic crust | 9. | layer of liquid metals that surrounds the inner core | 11. | places where heated rock rises in thin columns from the mantle | 15. | theory that the continents had once been joined in a huge supercontinent | 16. | Earth's thickest layer, measuring nearly 2900 kilometers |
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© 2013
PuzzleFast.com, Noncommercial Use Only