Unit 2 Flashcards
(31 cards)
How old is life?
4 billion years
When were the dinosaurs around?
250 million - 65 million
Prehistory
Time until 3000 BCE
Ice Age
2.5 million - 20,000 BCE
How many cycles of warming and cooling?
Four
What does climate do?
Climate cools - more snow in the winter.
What are the four geographic impacts of the ice age?
- Land bridges form
- Valleys
- Fertile soil
- Plant life/ climate zones change.
What are the Three impacts on Human Development?
- Evolution
- Hunters followed herd
- Spread throughout North and South America, Indonesia, and Australia.
How was the time frame Stone Age?
2.5 million years -
3,000 BCE
Paleolithic Stone Age
Old Stone Age
Neolithic Stone Age
New Stone Age
Time period of the Old Stone Age
2.5 million years ago - 8,000 BCE
What was the time period of the New Stone Age
8,000 BCE - 3,000 BCE
What is the difference between the Paleolithic Stone Age and the Neolithic Stone Age?
From a nomadic way of life to farming/ hunting and gathering for food
Agricultural Revolution
Farming leads to Permanent Settlements
Four impacts Agricultural Revolution has on people.
- Population Explosion
- Villages change culture
- Councils needed to make decisions
- Warriors to protect farms
Civilization
Complex Society
Complex Society
Civilization
How old is the earth?
5 billion years
What did Agricultural Revolution start?
The Neolithic Age
Why was plow developed
To loosen soil
What are 3 examples of agricultural revolution
Rivers
Water and Food
Fertile Soil
3 parts of Agricultural Revolution
Different crops in different places
Plow
Irrigation systems
What did Nomadic people do?
Settled down, farmed, built dwellings, and domesticated animals
