Rivers Fieldwork

Question 1

Location

Answer 1

Dorking

Question 2

Sites

Answer 2

Cromshere
Cross ways Farm
Abinge Hammer

Question 3

Sampling techniques used were

Answer 3

Stratified for places in different courses
Systematic - depth by measuring ruler in ten intervals
Random - width

Question 4

We presented our data through

Answer 4

Scatter graphs with lines of best fit

Question 5

Risk assessment (risk and hazard)

Answer 5

Losing children - keep an eye out - 2
Drown - low water level - 2
Falling - told to be sure footed - 4
Disease in river - antibiotic hand sanitiser - 2

Question 6

How did we collect our results

Answer 6

Hydroprop flow meter for velocity
Tape measure for width
Depth - metre ruler

Question 7

What made our results reliable

Answer 7

We took an average for depth from ten measurements and we took velocity three measurements for an average
Velocity using machine rather than floating and timer so less human error

Question 8

What made our results unreliable

Answer 8

Ineptitude 
Not professional 
Velocity depends on storm 
Only went on one day which may have been an anomaly
Depth may be in rock so shorter
Width may not have held it taut

Question 9

Hypothesis

Answer 9

Why and how the channels characteristics change and affect people and property