Plate Motion

Front

What is Earth's outer layer underneath the surface in the image?

Back

hard solid rock

Front

What happens when two plates move apart?

Back

Soft, solid rock from underneath the plates rises up and hardens, adding solid rock to the edges of both plates.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Front

If you took a cross section of a dragon fruit by cutting it vertically, what would the cross section look like?

Back

Front

What could explain how Lystrosaurus fossils, found in India and South America, got so far apart?

Back

The plates slowly moved apart as soft solid rock from underneath got added to the edges of the plates over millions of years.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Front

Where will geologists find hard, solid rock?

Back

Under both continents and oceans, because Earth's outer layer is made of hard, solid rock.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-3

NGSS.MS-ESS3-1

Front

What happens when two plates are moving toward each other?

Back

One plate goes underneath the other plate into the soft rock below.

Tags

NGSS.MS-ESS2-3

Front

What patterns can you see on this map?

Back

Earthquakes and volcanoes happen in similar places on plate boundaries.

Tags

NGSS.MS-ESS3-2

Front

How did the plates of the Earth move?

Back

gradually.

Tags

NGSS.MS-ESS2-3

Front

How often or how fast something happens is...

Back

rate.

Front

Earth's plates are moving at an average rate of

Back

3 cm per year

Tags

NGSS.MS-ESS2-3