Dynamic Earth - Development of a Theory

True or False: The seafloor is flat.

• True

• False

Tags

NGSS.MS-ESS2-3

True or False: Volcanic activity occurs only on land.

• True

• False

True or False: Continents drift across a molten mantle.

• True

• False

Tags

NGSS.MS-ESS2-3

What evidence supports the theory of plate tectonics?

• The distribution of earthquakes and volcanoes along plate boundaries

• The presence of similar fossils on different continents

• The fit of the continents

• All of the above

Tags

NGSS.MS-ESS2-3

Use the word 'topographic' in a sentence.

• Topographic maps are essential for hikers to understand the terrain.

• Topographic is a type of music genre.

• Topographic refers to a style of cooking.

• Topographic is a brand of clothing.

What is an isochron?

• A line on a map showing points of the same age

• A type of rock

• A seafloor feature

• A type of ocean current.

Tags

NGSS.MS-ESS1-4

Fill in the blank: Seafloor spreading is the process by which new oceanic crust continuously forms along mid-ocean ridges and is destroyed at ________.

• ocean trenches.

• mid-ocean ridges.

• continental shelves.

• abyssal plains.

Explain the process of seafloor spreading.

• Seafloor spreading is the process by which new oceanic crust is formed at mid-ocean ridges and slowly moves away from the ridge.

• Seafloor spreading is the process by which oceanic crust is destroyed at deep-sea trenches.

• Seafloor spreading is the process by which continents drift apart.

• Seafloor spreading is the process by which ocean water circulates through the seafloor.

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

NGSS.MS-ESS2-1

What does the word 'parallel' mean in scientific vocabulary?

• Two things that are the same distance apart along their whole length

• A type of ocean ridge

• A geological process

• A type of crust

The mechanism that explains Wegener's hypothesis of continental drift is:

• Plate tectonics

• Seafloor spreading

• Volcanic activity

• Earth's rotation

Tags

NGSS.HS-ESS1-5