Important skills

Question 1

What technique should you use when describing an experiment

Answer 1

CORMMSS

Question 2

What does CORMMSS stand for

Answer 2

Change (the different conditions you will expose your organism to. Independent variables)

Organism (What is the organism, how should it stay the same) Example: Same species, same age, same gender

Repeat (Say that you will repeat your experiment) Example: Repeat the experiment with different groups

Measurement (How you will measure your dependent variables)

Measurement (How long you will take the measurements for. Time intervals)

Same (What may affect you dependant variables which you must keep the same)
Same

Question 3

What technique to use when drawing graphs

Answer 3

SLAAPUK

Question 4

What does SLAAPUK stand for

Answer 4

Scale (must be linear. Cannot break scale)
Lines (dot to dot for line graph, or bars must not touch in bar graph)
Axis correct way around (Independent variable on X-Axis)
Axis must be labelled
Plots being in the right place
Units in axis labels
Key

Question 5

What is accuracy

Answer 5

Accuracy depends on the apparatus used and the skill of the scientist involved

Question 6

What makes a test reliable

Answer 6

A test must be repeated for it to be reliable

Question 7

What makes a test valid

Answer 7

A test is valid if only the independent variable is changed, and the other variables are controlled