WMS 7th Gr - Plate Tectonics & Seafloor Spreading

Evidence of life millions of years ago

• Fossils

• Continental Drift

• Lithosphere

• Plate Tectonics

Answer explanation

FOSSILS have been found dating back millions and millions of years. The Earth is 4.6 billion years old!

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Describes the movements of tectonics plates over long periods of time.

• Fossils

• Continental Drift

• Lithosphere

• Plate Tectonics

Answer explanation

Continental Drift -

Tectonic plates gradually move the continents over time.

Tags

NGSS.MS-ESS2-3

Consists of the crust and part of the mantle.

• Fossils

• Continental Drift

• Lithosphere

• Plate Tectonics

Answer explanation

Lithosphere consists of the...

- crust

- upper mantle

Tags

NGSS.MS-ESS2-1

Circular movements through the mantle.

• Continental Drift

• Lithosphere

• Convection Current

• Plate Tectonics

Answer explanation

MANTLE CONVECTION

Convection Currents -

Circular movements through the mantle.

The theory that the outer layer of Earth is divided and moves across Earth's surface.

• Fossils

• Continental Drift

• Lithosphere

• Plate Tectonics

Answer explanation

Plate Tectonics:

Theory that the outer layer of Earth is divided and moves across Earth's surface.

There is an idea or theory that the large masses of land all over the Earth were at one time all connected as Pangaea or a _____________.

• Supercontinent

• Drifting

• Tectonic Plates

• Fossils

Answer explanation

Pangaea = Supercontinent

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Scientists believe Earth's continents are ____________ or gradually moving.

• Supercontinent

• Drifting

• Tectonic Plates

• Fossils

Answer explanation

DRIFTING

- being carried slowly

- like a boat drifting in the ocean

Tags

NGSS.MS-ESS2-3

The pieces of Earth's crust and uppermost mantle are referred to as ______________ or the Lithosphere.

• Supercontinent

• Drifting

• Tectonic Plates

• Fossils

Answer explanation

Tectonic Plates

= Lithosphere (crust & upper mantle)

Tags

NGSS.MS-ESS2-1

Evidence from rocks and ____________ make clear how Earth's plates have moved great distances.

• Supercontinent

• Drifting

• Tectonic Plates

• Fossils

Answer explanation

Evidence from rocks and fossils make clear how Earth's plates have moved great distances.

Tags

NGSS.MS-ESS2-3

Before there was evidence from rocks and fossils, many scientists theorized that the continents were once joined together. Using only maps, scientists observed that...

• The shape of the continents allowed them to fit together.

• Weathering and erosion have reshaped the surface of the Earth.

• The oceans have become smaller throughout Earth' history.

• The continents were all bordered by mountain ranges.

Answer explanation

Continents were once joined.

Fit together like a puzzle.

Tags

NGSS.MS-ESS2-3