Unit 1 Quiz #2 Review

How old is the Earth?

• 5.3 billion years old

• 3.7 billion years old

• 4.5 billion years old

• 2.6 billion years old

Scientists believe Earth formed from what?

• Particles floating around in space

• a chunk of the sun broke off

• The Earth was formed from one massive asteroid

• Thanos snapped his fingers and formed Earth

What element in our atmosphere allowed for more complex organisms to develop over time?

• Nitrogen

• Carbon

• Oxygen

• Mercury

Bonus Question #1- Which of the following is the youngest teacher?

• Mr. Healey

• Ms. Cantor

• Ms. Hashem

• Mrs. Veiga

What part of the world do scientists believe humans originated?

• Antarctica

• Asia

• North America

• Africa

How long have humans existed according to scientists?

• about 500,000 years

• about 2 million years

• about 25,000 years

• about 30 million years

According to scientists, early humans migrated out of Africa because of _____________ and ___________, which made it difficult to survive and caused conflicts with other groups of humans.

• climate change

• meteor hit the location where humans were

• humans got sick of staying in one location

• lack of resources

Bonus Question #2- What is Mr. Healey's dog's name?

• Toby

• Dustin

• Rover

• Marley

Identify important characteristics of the Paleolithic Era

• Use of Stone Tools

• Farming

• Lasted from 2.5 million BCE to 10,000 BCE

• Lived Hunter-Gatherer Lifestyle

Identify important characteristics of the Neolithic Era:

• Lived in small villages/towns near rivers

• Started farming in order to grow food

• Developed metallurgy, which led to the creation of metal tools/weapons

• Domesticated animals to help farm, hunt and live