Sea floor spreading NOTES and Questions

Presentation

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Science

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11th Grade

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Practice Problem

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Medium

VICTORIA MOORE

Used 5+ times

FREE Resource

17 Slides • 9 Questions

Open Ended

"A convection current occur within the mantle" What is convection current?

Type response here

Draw

Circle where the "new" land will be located. Put a *star where the magma would be the hottest

Labelling

The movement of the molten lava mixed with iron flowing under the earths surface creates a electromagnetic flux where the earths magnetic field switches. The evidence can been seen in the crust intself.

Drag labels to their correct position on the image

Mantle

Mid Atlantic ridge

alternating magnetic field

Newer surface

older surface

Match

Match the term with it's definition or example

Subduction

Convection

magnetic stripes

Mid-Ocean ridge

sea floor spreading

ocean floor sinks beneath lithosphere

Warm magma rising and cool magma sinking

sea floor changes due to magnetic switch

where new sea floor is being created

process new and old earth on ocean floor

Drag and Drop

The ocean floor is a diverse landscape shaped by various geological features.

are volcanic mountain chains where new crust forms, and rift valleys are low areas in these ridges where plates pull apart.

are the deepest parts of the ocean, formed by one plate plunging under another. Seamounts are underwater volcanic

, while guyots are flattened underwater

. The continental slope is a steep drop-off at the edge of continents, leading to the continental rise, where

accumulates. Abyssal plains are vast, smooth areas at great depths, representing some of the deepest parts of the ocean.

Drag these tiles and drop them in the correct blank above

Mid-ocean ridges

Trenches

mountains

plateaus

sediment

Open Ended

With no sunlight what do you think could be the "producer" of this environment?

Type response here

Categorize

Options (12)

Produces carb and oxygen only

process of new crust production and moving of the sea floor

produces carb and suphuric acid only

Producer of sulfide

needs carbon dioxide and water to react

needs carbon dioxide and water and hydrogen sulfide and oxygen to react

done with sunlight

done without sunlight

convection of magma underneath the crust

creates warm pockets in a cold environment

houses tubeworms shrimps clams and mussels

cycles the crust like a conveyer belt

organize the information about hydrothermal vents and chemosynthesis

Photosynthesis

Sea floor spreading

Chemosynthesis

hydrothermal vents

Open Ended

How might the process of sea floor spreading and chemosynthesis effect the ocean ecosystem. How is it different from the on land environment?

Type response here

Hotspot

Identify what organism is necessary to convert sulfide.

Identify what would be a primary consumer. Identify the item that begins the process of energy for the food web using chemical compounds.

Show answer

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