Test: Development of Earth

Last updated almost 3 years ago

11 questions

Draggable item		Corresponding Item

This type of organism produced much of Earth's early oxygen.

Match the description to the picture

How long ago did Earth form?

Which sphere describes all of Earths water? _______ 
Which sphere describes all of Earths rock and deeper layers? _______ 
Which sphere describes all living things? _______ 
Which sphere describes all the gases surrounding Earth?_______ 

Aluminum is not a dense metal...it is very light. We will likely find more aluminum in the __________

During the __________period, all the continents were connected. You can see our 7 continents  in the __________period. The continents first started rifting (seperating) during the __________period.

Draggable item		Corresponding Item
accretion		Extraterrestrial comets, asteroids, meteorites hitting Earth produced heat
differentiation		Planet attracts matter, gets big and gravity compresses planet, producing heat
radiation		Denser (heavier) elements settle into layers producing heat
Bombardment from space material		Earth's core produces heat from radioactive decay

Test: Development of Earth

Test: Development of Earth

This type of organism produced much of Earth's early oxygen.

How long ago did Earth form?

After Earth's formation 4.6 billion years ago, several processes kept the surface hot and molten (liquid)..Match the correct term to their description or picture.

Re-order Earth's atmospheres from earliest (first) to present

This type of organism produced much of Earth's early oxygen.

Which of Earth's two types of crust is the densest (heaviest)?

How long ago did Earth form?

The sudden increase in diversity of animals is known as?

Which layer is solid iron