Water Cycle Flashcards
1
Q
Define a system
A
- A system has stores with transfers between them
2
Q
What are the two types of systems?
A
- Open systems (linked to other systems)
- Closed systems (self contained)
3
Q
What is an example of a closed system?
A
- Our planet
4
Q
What is an example of a open system?
A
- All of the ‘spheres’ as energy and mass are transfered between them
5
Q
State the inputs for a ‘garden pond’?
A
- Precipitation
- Leaf fall during autumn
- Seeds carried by wind
6
Q
State the stores for a ‘garden pond’?
A
- Water
- Soil
- Plants
7
Q
State the transfers for a ‘garden pond’?
A
- Photosynthesis
- Infiltration
- Transpiration
8
Q
State the outputs for a ‘garden pond’?
A
- Evaporation
- Seed dispersal
- Water soaking through soil and rocks
9
Q
What are the two types of feedback?
A
- Positive feedback
- Negative feedback
10
Q
Define positive feedback
A
- A cyclical sequence of events that amplifies or increases change
11
Q
Define negative feedback
A
- A cyclical sequence of events which damps down or neutralises the effects of a system
12
Q
What does a negative feedback loop promote?
A
- It promotes a state of dynamic equilibrium
13
Q
What are the two types of permeability?
A
- Primary (Goes between rocks)
- Secondary (porus rocks) (Goes through the rocks)
14
Q
State the water cycle
A
15
Q
What is trunk trickle?
A
- Water flowing down tree trunks
16
Q
What is topography?
A
- The layout of the land
17
Q
What are the five ‘spheres’?
A
- Lithosphere
- Hydrosphere
- Cryosphere
- Atmosphere
- Biosphere