Earth Eons Quiz

What was a main event that happened during the Hadean Eon?

• The first humans appeared on Earth.

• The Moon was formed from a planet sized rock that crashed into Earth

• Multi cellular life was created.

• The Earth froze all over, causing a Snowball Earth.

What was a main event during the Archean Eon?

• Earth became a snowball due to the great oxidation event.

• Earth was covered in magma.

• Human life was born

• Cyno-Bacteria was first photosynthesized

What was a main event in the Proterozoic Eon?

• Multi-cellular organisms were formed.

• The moon was formed.

• Dinosaurs were killed.

• Breathable air formed.

What was a main event during the Phanerozoic eon?

• Multi-Cellular life appeared on earth.

• The great oxidation.

• Small mammals and reptiles were born on earth.

• Pangaea

How do scientists research about how old the Earth is?

• They haven't figured out how to yet.

• They check how big the Earths tides are.

• They check how big the sun is

• Scientists study how old Earths rock are.

When did Precambrian time start?

• When the Earth was born.

• Proterozoic Eon

• During the Archean Eon

• During the Phanerozoic Eon

Tags

NGSS.HS-ESS1-6

What is the Cambrian time?

• When the snowball earth formed.

• A time were evolutionary changes in life were marked.

• When the great oxygenation event occurred

• All of the above.

What was the Proterozoic Eon?

• When the moon formed.

• When the dinosaurs died.

• Earth turns into a snowball.

• The Eon that started life to evolve into more complex organisms

How did water form on Earth?

• Elements from minerals come together and made water

• Water was found in the soil

• Water came from comets and astroids that crashed into Earth

• Water was made found fruit

What happened during the Hadean Eon?

• The Moon formed, the Earth was covered by hot lava and molten rock. The Earth had also gone through the Late Bombardment Stage.

• The first oceans formed, along with the first continent, oxygen also began to appear on Earth, along with bacteria.

• Earth was covered with snow, and ice being known as the snowball Earth.

• The dinosaurs went extinct, the most believed theory being a meteor wiping them out.