Migration Vocabulary

Which of these is a thick sheet of ice?

• Weather

• Strait

• Glacier

• Artifact

Answer explanation

A glacier is a thick sheet of ice formed from compacted snow over time, making it the correct answer. Weather refers to atmospheric conditions, strait is a narrow waterway, and artifact is a man-made object.

When did many glaciers form?

• last summer

• during the Ice Age

• 2002

• during a solar eclipse

Answer explanation

Many glaciers formed during the Ice Age, a period characterized by significant global cooling and the expansion of ice sheets. The other options do not correspond to the geological time frame when glaciers were prevalent.

What do scientists call a possible explanation?

• artifact

• interdependent

• irrigation

• theory

Answer explanation

Scientists refer to a possible explanation as a 'theory'. A theory is a well-substantiated explanation based on evidence, distinguishing it from terms like 'artifact' or 'irrigation', which have different meanings.

Which of these is an artifact?

• arrowhead

• baby bird

• rain

• glacier

Answer explanation

An artifact is a human-made object, and an arrowhead fits this definition as it is a tool created by people. In contrast, a baby bird, rain, and a glacier are natural entities, not artifacts.

Which of these have NOT migrated?

• wooly mammoths

• lakes

• prehistoric people

• Canadian geese

Answer explanation

Lakes are bodies of water and do not migrate. In contrast, wooly mammoths, prehistoric people, and Canadian geese are all known to have migrated for various reasons, such as climate and food availability.

Who might study artifacts to learn about long ago?

• biologist

• hair stylist

• florist

• archaeologist

Answer explanation

An archaeologist studies artifacts to understand past human cultures and societies. Unlike biologists, hair stylists, or florists, archaeologists specifically focus on historical objects to learn about long ago.

Which created a land bridge to connect Asia and North America?

• Ohio River or Ohio Lake

• Niagara Falls or Niagara Waterfall

• Bering Strait or Beringia

• Gulf of Mexico or Guld of Canada

Answer explanation

The Bering Strait, also known as Beringia during the last Ice Age, created a land bridge that connected Asia and North America, allowing migration between the two continents.