Open & Closed Systems

Question 0

Material transfer from surface to interior:

Answer 0

At convergent margins, the subduction of ocean floor.

Question 1

Material transfer from interior to surface: (3)

Answer 1

At mid ocean ridges.
Some oceanic lithosphere goes into the continents.
Igneous activity at convergent margins (magma and volcanic gases).

Question 2

An isolated system:

Answer 2

Allows neither matter or energy to cross it’s boundaries; realistically they don’t exist.

Question 3

A closed system:

Answer 3

Allows energy, but not matter to cross it’s boundaries.

Question 4

An open system:

Answer 4

Allows energy and matter to cross it’s boundaries.

Most of the cycles on Earth are open.

Question 5

The rock cycle - An open system: (2)

Answer 5

Has processes involving the other main systems.

Exchange of matter, such as the formation of carbonate sediments from life processes.

Question 6

The Earth - A closed system: (2)

Answer 6

Energy enters and leaves.

It has almost a constant mass.

Question 7

Earth - closed system exceptions: (2)

Answer 7

Small amount of gas leaks from the atmosphere.

A few meteorites arrive to Earth.