E Planet Earth

Question 1

The movement of rock and mineral grains from one place to another

Answer 1

erosion

(technically physical or mechanical erosion rather than chemical erosion)

Question 2

The process where eroded material is deposited and built up.

Answer 2

Sedimentation

Question 3

The physical break up of rocks

e.g. gravity causes rock to drop and break

Answer 3

mechanical weathering

Question 4

frozen water splits rocks

Answer 4

frost wedging

this is an example of mechanical weathering

Question 5

acid rain breaks down rocks

(limestone and dolomite are the usual ones that are broken down)

Answer 5

chemical weathering

Question 6

living organisms (such as plants, animals, bacteria, and fungi) break down rocks

Answer 6

biological weathering

e.g. plant root wedges and breaks rock

Question 7

What are the three types of weathering, and what do they do?

Answer 7

• mechanical
• chemical
• biological

they change the landscape since they are breaking up rocks

Question 8

What causes erosion?

Answer 8

• glaciers (ice)
• gravity
• wind (air)
• water

Question 9

What are the layers of Earth from outside in?

Answer 9

• crust
• mantle
• outer core
• inner core

Question 10

crust

Answer 10

• outside of the earth
• made of rock, minerals, oil, gas etc.

Question 11

mantle

Answer 11

• made of rock (upper –> solid) and magma (lower –> taffy consistency)
• has upper and lower mantle

Question 12

lithosphere

Answer 12

the crust and the upper and lower mantles

Question 13

outer core

Answer 13

• made of iron and nickle (just like the inner core)
• colder than the inner core but super hot

Question 14

inner core

Answer 14

• iron and nickle
• 6000 degrees celcius (hotter than outer core)

Question 15

need more cards in this unit - stay tuned!