Continental Drift and Seafloor Spreading

What is a scientific theory

• An explanation for how or why something occurs in the natural world

• German born meteorologist

• theory that Earth's continents move on Earth's surface

• Princeton professor who discovered seafloor spreading

What is the theory of Continental Drift?

• An explanation for how or why something occurs in the natural world

• German born meteorologist

• theory that Earth's continents move on Earth's surface

• Princeton professor who discovered seafloor spreading

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Who was Harry Hess?

• An explanation for how or why something occurs in the natural world

• German born meteorologist

• theory that Earth's continents move on Earth's surface

• Princeton professor who discovered seafloor spreading

Tags

NGSS.MS-ESS2-2

Who was Alfred Wegner?

• An explanation for how or why something occurs in the natural world

• German born meteorologist

• theory that Earth's continents move on Earth's surface

• Princeton professor who discovered seafloor spreading

Tags

NGSS.MS-ESS2-3

What is seafloor spreading?

• The fact that the seafloor spreads apart

• Sound Waves

• mid-ocean ridge

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

What kind of waves were bounced off the ocean floor and used to create maps of the ocean floor?

• The fact that the seafloor spreads apart

• Sound Waves

• mid-ocean ridge

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

There are mountain ranges in the middle of the ocean called...

• The fact that the seafloor spreads apart

• Sound Waves

• mid-ocean ridge

Tags

NGSS.MS-ESS2-3

There are mountain ranges in the middle of the ocean called...

• The fact that the seafloor spreads apart

• Sound Waves

• mid-ocean ridge

Tags

NGSS.MS-ESS2-3

Which seafloor is the oldest?

• 1

• 3

• 5

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

Which seafloor is the coldest?

• 1

• 3

• 5

Tags

NGSS.MS-ESS2-3