Early America

a large, prehistoric animal similar to an elephant and a mammoth?

• Mastodon

• Bear

• Lion

A very thick piece of ice that covers a large area of land for an extended period of time?

• Ice Sheet

• Snow

• Iceberg

a large, prehistoric elephant-like animal covered with hair

• Mammoth

• Elephant

• Musk Ox

• Bear

a period in Earth’s history when huge sheets of ice covered large parts of Earth’s surface

• Cold Age

• Ice Age

• Summer

• Spring

an area of lowland surrounded by mountains or hills, often with a river running through it

• River

• River Valley

• Gorge

a large group of animals that live and travel together?

• Herd

• Stampede

• Group

• Family

the top layer of Earth’s surface where plants grow?

• Soil

• Dirt

• Ground

A small groups of people who feed themselves by hunting animals and gathering plants

• Hunter-Gatherers

• Fishers

• Farmer

A small strip of land that connects two large land masses

• Land-bridge

• Crossover

• Boat

• Ladder