Plate motion LEAP Review

Plate Motion LEAP review

Fill in the Blank

______________ is the supercontinent proposed by Alfred Wegener that began to break apart about 175 million years ago

Fill in the Blank

The ring of ____________ is a chain of volcanoes that surround the Pacific Plate

Dropdown

Select answer

boundaries is where two plates ​

Select answer

next to each other. At this boundary, we get a lot of ​

Select answer

.

Dropdown

Convection currents is what makes the tectonic plates ​

Select answer

Multiple Choice

What are tectonic plates?

• large, irregularly shaped slabs of solid rock (both continental and oceanic crust) that make up Earth's lithosphere and float on the mantle,

• large, irregularly shaped slabs of solid rock (both continental and oceanic crust) that make up Earth's lithosphere and float on the ocean.

• The continents

Multiple Choice

What is continental drift?

• The idea that the earth’s continents moved apart from one large singe continent.

• When plates are moving on Earth

• When Pangea broke apart

• Subduction zones

Multiple Choice

What layer of the earth is the biggest and made up of liquid rock?

• core

• mantle

• inner core

• outer core

Fill in the Blank

_____________ are remains of ancient living things.

Multiple Choice

What is sea floor spreading?

• The sea floor spreads apart along both sides of a mid-ocean ridge as new crust is added.

• When the crust subducts into the mantle

• When crust is destroyed at a boundary

Multiple Select

What was evidence that Wegener used to prove that the continents were moving?

• Fossils

• glacial evidence

• continents fitting like puzzle pieces

• DNA evidence

Match

Match the following

• Convergent boundaries

• Divergent boundaries

• Transform boundaries

• Mid- oceanic ridges

• Subduction zones

Coming together

Separating

Slide next to each other

Create new crust

Destroy crust

• Coming together

• Separating

• Slide next to each other

• Create new crust

• Destroy crust

Dropdown

The

Select answer

is solid metal while the ​ ​

Select answer

is liquid metal.

Multiple Choice

What is a scientific theory?

• Scientific theory – a well tested concept that explains a wide range of observations. ​

• a scientific law

• something that is NOT supported by evidence

Reorder

List the layers of the earth in order from the surface to the center

• crust

• lithosphere

• asthenosphere

• mantle

• core

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

What is plate tectonics?

• The continents drifting apart

• The theory that Earth’s lithosphere is divided into several plates that glide over the plastic-like and less rigid asthenosphere.

• When the continents float around the earth on the oceans

Multiple Choice

When the fluid at the top begins to cool, it becomes more dense and moves to the bottom causing the convection current, or the flow that transfers heat. ​ What does this explain?

• Radiation

• Conduction

• Convection currents

Fill in the Blank

________________ is the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.

Multiple Choice

What is the lithosphere?

• The lithosphere  - composed of both the crust and the portion of the upper mantle that behaves as a brittle, rigid solid.

• the part of the mantle that moves

• the outer core

• The outer crust

Fill in the Blank

The asthenosphere is where the convection ______________ are.

Fill in the Blank

Both the inner and outer core are made of nickel and ____________.

Multiple Choice

Rift valleys happen on land in this type of plate boundary.

• convergent

• transverse

• divergent

Dropdown

Select answer

crust is thicker than ​

Select answer

crust. Both types of ​

Select answer

is the outermost layers of the earth.

Fill in the Blank

The thinnest layer of our earth is the ______________.

Multiple Choice

What type of crust is the thinnest?

• oceanic

• continental

Fill in the Blank

__________________ boundaries create new crust on earth.

Fill in the Blank

______________ boundaries destroy crust at trenches and subduction zones.

Dropdown

Select answer

boundaries separate at ​

Select answer

or​ at ​

Select answer

(if on land). This type of boundary​

Select answer

new crust.

Multiple Choice

The edges of the tectonic plates meet at lines called

• plate boundaries
• geological fractures
• fault lines
• tectonic seams

Dropdown

There are

Select answer

different type of plate boundaries. ​

Select answer

boundaries separate​

Select answer

boundaries come together, and ​

Select answer

boundaries slip side by side.