Ice Cores and Varves

___________ are drilled from sheets of ice, mostly from Greenland or Antarctica.

• extrusions

• ice cores

• intrusions

Tags

NGSS.HS-ESS2-5

NGSS.HS-ESS3-5

In an ice core, the darker layers were formed during ________.

• winter

• summer

Ice cores can trap gases, like carbon dioxide. And increased concentration of carbon dioxide found in a layer of ice is one piece of evidence for ____________.

• climate change

• cell theory

Tags

NGSS.HS-ESS2-2

NGSS.HS-ESS2-4

NGSS.HS-ESS3-5

Since 1958, increased levels of CO₂ have been detected in ice cores. Which is most likely responsible for this increase?

• Using wind turbines

• Using moving water to generate electricity

• Burning fossil fuels

Tags

NGSS.HS-ESS2-6

Climate change is sometimes also referred to as ___________.

• Theory of Evolution

• Law of Superposition

• Global Warming

Ice cores also follow the Law of Superposition, which shows that the oldest deposits can be found at the __________, and the youngest are found at the top.

• bottom

• middle

• top

Tags

NGSS.MS-ESS1-4

Which letter identifies the ice layer that was most recently formed?

• A

• B

How can ice cores provide evidence for the evolution of Earth's atmosphere?

• Ice cores can show how the composition of the atmosphere has changed over time.

• Ice cores can show how reptiles have changed over time.

Tags

NGSS.HS-ESS1-6

NGSS.HS-ESS3-5

If a layer of volcanic ash is found in an ice core, what does that indicate?

• Ash borer beetles lived in that habitat.

• A volcanic eruption occurred.

Tags

NGSS.MS-ESS3-2

What would finding high amounts of the O18 isotope in an ice core mean?

• Higher atmospheric temperatures

• Lower amounts of plankton

Tags

NGSS.HS-ESS2-4

NGSS.HS-ESS3-5