Earth's Layers, Plates, Volcanoes, and Earthquakes

The plates of the Earth moved

• suddenly.

• gradually.

Tags

NGSS.MS-ESS2-3

How often or how fast something happens is...

• rate.

• to analyze.

• a relationship.

• a claim.

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NGSS.MS-ESS2-5

NGSS.MS-PS3-1

The Pacific Ocean used to be bigger and the distance between China and North/South American used to be farther away. What could explain this as these places are on different plates?

• The plates floated toward each other making the ocean smaller.

• The plates were pushed toward each other by earthquakes, and one plate went under the other plate into soft solid rock.

• The plates moved toward each other and hit each other breaking into smaller pieces.

• The plates moved slowly toward each other as one plate went under the other plate into soft, solid rock over millions of years.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Why do volcanoes and earthquakes occur in so many of the same areas?

• the crustal plates are moving

• earthquakes cause volcanos

• volcanos cause earthquakes

• landslides cause everything

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

These are very common at plate boundaries.

• volcanoes

• oceans

• valleys

• glaciers

Tags

NGSS.MS-ESS2-3

In what direction does warmer material move in a convection current?

• up

• down

Tags

NGSS.MS-ESS2-6

NGSS.MS-PS1-4

In a sequence of rock layers, the oldest layer of rock is ___________________ of the sequence.

• younger

• at the top

• in the middle

• at the bottom

Tags

NGSS.MS-ESS1-4

The outermost layer of the earth is about 3 to 30 miles thick. It is called the

• mantle

• crust

• outer core

• inner core

The second layer of the earth goes down 1800 miles. It is called the

• crust

• outer core

• inner core

• mantle

HUGE slabs of rock called __________ float on molten rock below.

• plates

• mountains

• mid-ocean ridges

• mantle