Ice Age and Land Bridge Worksheet

What is a theory?

• An idea or explanation that is based on evidence and can be tested

• A type of animal found in the ocean

• A large body of water

• A kind of bridge made of land

During the ice age, it was so cold that most of the water in the world ________________.

• Turned into ice

• Evaporated into the air

• Became salty

• Turned into steam

What is a strait?

• A narrow body of water that connects two larger bodies of water

• A large mountain range

• A type of tree

• A kind of animal

What were the people who crossed the Land Bridge probably looking for?

• Food and resources

• New types of music

• Gold and silver

• A place to swim

Why was the Land Bridge important to the Native Americans?

• It allowed them to travel to new lands

• It was a place to build houses

• It was used for fishing only

• It was a place to play games

What is the Land Bridge Theory?

• The idea that people crossed from Russia to Alaska on frozen land

• The idea that people built a bridge over the ocean

• The idea that people flew from Russia to Alaska

• The idea that people swam across the ocean

What is a strait?

• A mountain range

• A skinny body of water

• A large desert

• A frozen land bridge

Why did the first Americans probably leave Russia?

• To find gold

• To follow herds of bison

• To escape war

• To build cities

What did the first Americans use to stay warm on the land bridge?

• Wool blankets

• Clothing made from animal skins

• Heavy coats from stores

• Electric heaters

What covers the land bridge between Russia and Alaska today?

• The Pacific Ocean

• The Bering Strait

• The Atlantic Ocean

• The Arctic Circle