Evidence of Earth's Change Over Time

What must a theory be supported by?

• Opinions

• Evidence

• Beliefs

• Assumptions

Tags

NGSS.MS-LS1-4

NGSS.MS-LS2-4

What did scientists not know about continents until the theory of plate tectonics?

• That they existed

• Why they moved

• Their exact size

• Their color

Tags

NGSS.MS-ESS2-3

How many tectonic plates is Earth's surface broken into?

• Less than five

• More than a dozen

• Exactly ten

• Over a hundred

Tags

NGSS.MS-ESS2-3

Approximately how many years ago was Pangaea formed?

• 500 million years ago

• 250 million years ago

• 100 million years ago

• 50 million years ago

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

What is the significance of tectonic plate movement?

• It causes weather changes.

• It changes the locations and sizes of continents and oceans.

• It affects the Earth's magnetic field.

• It influences the Earth's rotation speed.

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

NGSS.MS-ESS2-1

What did other scientists hypothesize about supercontinents?

• They never existed.

• They formed earlier than Pangaea.

• They were smaller than Pangaea.

• They were formed by volcanic eruptions.

Tags

NGSS.MS-ESS2-3

What is the evidence of Earth's change over time?

• The constant size of continents

• The movement of tectonic plates

• The stability of ocean levels

• The unchanging climate

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

What do fossils provide evidence for?

• Evolution of species

• Theory of continental drift

• Climate change

• Extinction of dinosaurs

Tags

NGSS.MS-LS4-1

What type of animal was Mesosaurus?

• A dinosaur

• A bird

• A stocky lizard

• A mammal

Why is it significant that Mesosaurus fossils are found on two continents?

• It suggests the continents were once connected

• It shows Mesosaurus could fly

• It indicates Mesosaurus lived in deserts

• It proves Mesosaurus was a marine animal

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1