Fast Changes

Pangaea was NOT

• a supercontinent of all 7 continents connected

• never real; it was made up by early explorers

• 225 million years ago

The thickest layer of the earth located beneath the crust, made up of hot magma

• inner core

• crust

• mantle

• outer core

Tags

NGSS.MS-ESS2-1

The third layer of the earth, made out of liquid iron metal:

• outer core

• crust

• inner core

• mantle

The innermost layer of the earth, made of solid iron metal:

• crust

• mantle

• inner core

• outer core

The thinnest layer of the earth, made up of plates and rock

• outer core

• inner core

• mantle

• crust

Igneous rocks are:

• formed when existing rocks are changed into new rocks by heat and pressure

• formed by layers of soil, sand, and sediment

• formed from the molten lava of a volcano

Rocks formed by layers of soil, sand, and sediment are called:

• sedimentary

• metamorphic

• igneous

Rocks formed when existing rocks are changed into new rocks by heat and pressure are:

• igneous

• sedimentary

• metamorphic

The place where two plates meet is called:

• an earthquake

• a fault

• an epicenter

A seismograph is:

• an instrument that records movement to predict an earthquake

• a scale from 1-9 measuring how powerful an earthquake is

• a tool used to predict when a volcano will erupt

Tags

NGSS.MS-ESS3-2