Layers Of The Earth

Front 1

Who is Alfred Wegener and what is he best known for?

Back 1

Alfred Wegener created his theory of continental drift. He believed a supercontinent named "Pangea" existed where all the continents were connected.

Front 2

Name the three main layers that make up the Earth's interior.

Back 2

The crust, mantle and core

Front 3

What is the lithosphere?

Back 3

The lithosphere is the uppermost part of the mantle and crust together. (where we live)

Front 4

What are the three types of heat transfer?

Back 4

The three types of heat transfer are
1. radiation
2. conduction
3. convection

Front 5

Describe the different types of heat transfer
radiation
conduction
convection

and give examples

Back 5

radiation- is the transfer of energy through an empty space. example would be sunlight, a camp fire.

conduction-transfer of energy by direct contact. (ice cube in hand, spoon in hot pan)

convection-transfer of energy by the movement of heated fluid. (pot on stove heats the water inside it)

Front 6

What is density?

Back 6

Density if the measure of how much mass there is in a volumn of a substance. ie: why does oil float to the top of water---because it is less dense than water. heated air is less dense and rises

Front 7

What is a convection current?

Back 7

A convection current is the flow that transfers heat within fluid. Heating and cooling, change in density and force of gravity set convection currents in motion. ie: boiling water moves in a circular pattern so that all the water is heated