How and where does the mid-ocean ridge form?

occur at spreading plate boundaries and involve the moving apart of oceanic plates

occur at converging plate boundaries and involve the moving together of oceanic plates

How are oceanic and continental crust different?

Oceanic crust is thinner and denser than continental crust.

Oceanic crust is thinner and lighter than continental crust.

Oceanic crust is thicker and lighter than continental crust.

Oceanic crust is thicker and denser than continental crust.

The OLDEST seafloor is located?

Farthest from the mid-ocean ridge

What are Mid-Ocean Ridges?

A chain of underwater mountains

A chain of underwater waterfalls

How is it possible for new crust to be formed without increasing the surface area of the Earth?

Crust is recycled in subduction zones at the same time it is created at mid-ocean ridges

New crust is underwater where it sinks

New crust breaks more easily than old crust

The oldest crust just breaks apart as the plates move

The OLDEST seafloor is located

farthest from the mid-ocean ridge.

closest to the mid-ocean ridge.

What type of plate activity is creating the Himalayas?

divergence of the Indian Ocean and Asia

Seafloor spread occurs because....

Magma below the Earth's crust is forced up toward the surface after plates move apart

Plates are smashing together and oozing apart

Maui is trying to break out of his prison

The Earth's magnetic poles are reversing

Sea-floor spreading explains how.....

new crust is created at a divergent boundary

volcanoes are formed on continents

One piece of evidence for Plate Tectonic Theory is seafloor spreading. The diagram provided shows the pattern of rock on either side of the Mid-Atlantic Ridge. The evidence that indicates that plates are moving apart at this location is that, as one looks at the rocks on either side, one sees that -

rocks are older the farther they are from the center

there is a thickening of the crust where the sides meet

rock types on one side are very different from the other

one rock layer melts as it moves under the other side

Plate Tectonics

Quiz

•

Science

•

6th Grade

•

Practice Problem

•

Hard

•

NGSS

MS-ESS2-3, MS-ESS2-2, MS-ESS2-1

+4

Standards-aligned

Olivia Daley

FREE Resource

25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Name this boundary

Convergent

Divergent

Transform

Sergent

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Name the boundary

divergent

convergent

transform

sergent

Tags

NGSS.MS-ESS2-3

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Name the boundary

convergent

transform

divergent

sergent

Tags

NGSS.MS-ESS2-3

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Tectonic plates float on top of the ________

Crust

Mantle

Inner Core

Outer Core

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

As plates pull apart, what happens?

Loose rock material fills the empty space.

New plate material fills the empty space so there is no space left.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What happens when continental plates press together?

The edges of the plates will push upward and continue to move toward each other.

The edges of the plates will be pushed downward and continue to move toward each other.

Tags

NGSS.MS-ESS2-2

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Under sea mountain ranges are called:

deep sea trench

aquatic ranges

mid-ocean ridges

salty hills

Tags

NGSS.MS-ESS2-3

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Plate Tectonics

25 questions

Name this boundary

Name the boundary

Name the boundary

Tectonic plates float on top of the ________

As plates pull apart, what happens?

What happens when continental plates press together?

Under sea mountain ranges are called:

When one piece of crust gets pushed under another one, it called:

The theory of plate tectonics is based on hot magma rising and cool magma sinking. This cycle is called:

Mid-Ocean Ridges are similar to which continental landforms?

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