T8L1QUIZ* - Ocean Floor & Plate Tectonics

What is the mid-ocean ridge?

• A deep hole in the ocean

• A mountain range on the ocean floor

• A big wave in the ocean

Sea-floor spreading happens when…

• New rock forms on the ocean floor

• Water moves from one ocean to another

• Ocean waves break rocks apart

Tags

NGSS.MS-ESS2-1

What is subduction?

• When ocean crust sinks under another plate

• When the ocean floor spreads apart

• When a volcano erupts on land

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

An ocean trench is…

• A deep valley under the ocean

• A tall ocean mountain

• A place where fish live

Tags

NGSS.MS-ESS2-3

A hypothesis is…

• A guess with no evidence

• A testable idea based on facts

• A type of ocean wave

Tags

NGSS.MS-PS1-2

How do fossils show that continents moved?

• The same fossils are found on different continents

• Fossils can only be found in one place

• Fossils are always found under the ocean

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

How does climate show that land has moved?

• Ice once covered places that are now warm

• The ocean never changes

• All fossils are found in warm places

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

How do land features help show how plates move?

• Some mountains on different continents fit together

• Mountains never change

Tags

NGSS.MS-ESS2-3

Why does the sea floor keep changing?

• Magma rises and makes new rock

• The ocean dries up

• Subduction makes the ocean disappear.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

What happens to old ocean crust?

• It stays the same forever

• It sinks into ocean trenches and melts

• It moves up into the sky.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3