Analysing Experimental Data

Question 1

Analysing data

4 marks

Answer 1

Using the data collected, we can identify relationships between the independent + dependent variables and explain their meaning.

Question 2

Why we analyse data/results obtained from an experiment

1 mark

Answer 2

Need to be analysed in order to understand the findings.

Question 3

Investigating the effect of temperature on the action of an enzyme

(4 marks)

Answer 3

As temp increases from 0°C - 40°C, the time taken for starch digestion decreases.

As the temp increases above 40°C, the time taken for starch digestion increases.

Question 4

Make Deductions From Given Observations

4 marks

Answer 4

It is sometimes necessary to record observations during a scientific experiment.

• could include noting any changes during an experiment, recording results in a table or making a drawing.

Question 5

How we record observations during a scientific experiment.

3 marks

Answer 5

Noting any changes during an experiment.

Recording results in a table.

Making a drawing.

Question 6

A good biological drawing should be:

8 marks

Answer 6

• Drawn in pencil; Lines firm + continuous with no gaps (not sketchy).
• Large with the same proportions as the observed cell.
• Labelled using separate ruled lines; should be spread out with bullet point on one end + clearly written label on the other.
• Title including its magnification or size.