LO1

Question 1

what are some of the responsibilities of the Health and safety at work act 1974

Answer 1

1. Provide staff with safety equipment
2. Proper maintenance
3. Proper storage, handled and transported
4. Training and supervision
5. Written H and S policy
6. Risk assessment

Question 2

what are the 8 hazard symbles

Answer 2

EXPLOSIVE
FLAMMABLE
OXIDATION
GAS CANISTER
TOXIC
CORROSIVE
HEALTH HAZARD
DANGER

Question 3

define Hazard

Answer 3

he harm that can come from something

Question 4

Define Risk

Answer 4

a combination of the chance that the hazard will cause harm and how serious that harm could be

Question 5

define Likelihood

Answer 5

the chance that the hazard will cause harm

Question 6

when can a method be considered repeatable

Answer 6

if the same experimenter obtains consistent results using the same method and equipment under identical conditions.

Question 7

when can a method be considered reproducible

Answer 7

if different experimenters can achieve consistent results using the same method but under varying conditions, such as with different equipment or locations.

Question 8

define calibration

Answer 8

Calibration

Question 9

how do you calibrate a thermometre

Answer 9

put the thermometer in some water with a larger proportion of ice, and let it reach 0 degrees Celcius . then add the same thermometer to boiling water which should increase it to 100 degrees Celcius

Question 10

who do you calibrate glassware

Answer 10

Using a special liquid of known specific density and a special balance. The density and mass can be measured. The volume can then be calculated

Question 11

what methods can you use to sample moving organisms

Answer 11

pitfall traps
sweep nets
Pooter
Tree beating

Question 12

what methods can you use to sample plants

Answer 12

Quadrata
Belt transect

Question 13

what is the downsides of whole population sampleing and give one use of whole population sampling

Answer 13

relatively rare - time consuming, cost and logistics
Population can be very large
Populations can be inaccessible
Example of use: Scenes of crime (forensics)

Question 14

whats the method for using quadrats

Answer 14

Mark out an area of a field (measure the length and width for area)
Throw quadrat randomly in that area
Pick 10 random boxes and count how many of one plant is in each square
Repeat for 10 throws
Calculate average then times by area to get the average population of that field

Question 15

what are the 8 main parts of a scientific report

Answer 15

Title - a brief sentence on what the report is about. Must be informative
Abstract - , summary of what you found
Introduction - provides context - why important, aims
Method - the equipment and processes you will use to perform the experiment. In sequence - must be able to followed
Results - highlight the outcome of the experiment - clear, table, graphs, figures
Discussion - what the results mean - expected? Statistically significant? improvements?
Conclusion - brief state results and significance of findings
References - the resources you used to make the report for cross referencing