ICE CORE LAB slides

Multiple Choice

What is the significance of ice cores in understanding climate change?

• They provide evidence of past climate conditions

• They are used to build glaciers

• They help scientists predict earthquakes

• They are sources of fresh water

Multiple Choice

Which two locations are highlighted as having glaciers that can be several miles thick and contain some of the oldest ice layers on Earth?

• Antarctica and Greenland

• Arctic and Siberia

• Canada and Russia

• Iceland and Alaska

Multiple Choice

Which of the following statements about glacier formation and ice layers is correct?

• Older ice is always found at the top of a glacier.

• Glacial ice forms from a single snowfall event.

• Layers of ice in glaciers can record climate conditions from the past.

• Summer snow and winter snow have identical chemistry and texture.

Fill in the Blanks

Ice core scientists relate the recent rise in CO2 levels to the onset of the

Revolution.

Multiple Choice

Why are ice cores stored in cold laboratories at temperatures like -36°F?

• To prevent melting and preserve the samples

• To make them easier to transport

• To reduce the weight of the ice cores

• To speed up analysis

Fill in the Blanks

Looking down into a 10-meter ice core sample hole shows the depth reached during drilling. Fill in the blank: The hole shown is

meters deep.

Multiple Select

Which particles found in ice core layers can provide information about past global events?

• Dust

• Pollen

• Ash

• Sea salts

Multiple Choice

Which of the following is NOT a form of proxy record used to study past climates?

• Fossils

• Ice cores

• Tree rings

• Wind patterns

Multiple Select

Which of the following are indicators you can track to observe changes in global conditions over time?

• Sea Ice

• Sea Level

• Carbon Emissions

• Average Global Temperature

Fill in the Blanks

A light band and a dark band in an ice core together make up

year.

Multiple Choice

What do the darker bands in an ice core represent?

• Summer snowfall

• Winter snowfall

• Spring growth

• Rainy season

Multiple Choice

What information can scientists gather from the layers and trapped particles in an ice core sample?

• The age of the ice and past atmospheric conditions

• The exact temperature of the present day

• The location where the ice core was found

• The types of animals living nearby

Multiple Choice

How do ice cores help scientists understand climate change over Earth's history?

• Ice cores contain trapped air bubbles that show past atmospheric conditions.

• Ice cores are used to measure the thickness of glaciers only.

• Ice cores help scientists find new animal species.

• Ice cores are used to predict future volcanic eruptions.