Unit 2 Study Guide

How long ago did Pangea break up?

• 67 million years ago
• 100 million years ago
• 200 million years ago
• 200 billion years ago

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Did Pangea break up before the dinosaurs died?

• Yes
• No

Tags

NGSS.MS-ESS2-3

Which of these is true?

• Compositional layers are divided by what they are made out of
• Mechanical layers are divided by what they are made out of
• Neither of these are true

How many compositional layers are there?

• 2
• 3
• 5
• 6

What is the outermost compositional layer?

• crust
• mantle
• core

What is the hottest layer?

• Crust

• Mantle

• Core

How many mechanical layers are there?

• 2
• 3
• 5
• 6

What is the outermost mechanical layer?

• lithosphere
• asthenosphere
• mesosphere
• outer core
• inner core

Plate Tectonics Theory states that the Earth's outer mechanical layer, the lithosphere, is divided into large continent-sized plates that are constantly moving.

• True
• False

Tags

NGSS.MS-ESS2-3

True or False: The Earth is constantly moving beneath your feet.

• True
• False

Tags

NGSS.MS-ESS3-1