Scientific Inquiry Skills

Question 1

Independent Variable

Answer 1

Something that is purposefully changed that affects the dependent variable
Eg. CO2 solution in - (mL)

Question 2

Dependent Variable

Answer 2

Measured results that were influenced by the independent variable
Eg. Height of bubbles (cm)

Question 3

Controlled

Answer 3

Variables that don’t change
Eg. Time left unattended

Question 4

Control group

Answer 4

Makes sure the independent variable is the only thing affecting the dependent variable

Question 5

Accuracy

Answer 5

How close results are to the ‘true value’
- Average (closest to true value)

Question 6

Percision

Answer 6

How closely a set of measurement values agree with each other
- Range (smallest)

Question 7

Repeatability

Answer 7

Same conditions and method > same/similar results

Question 8

Reproducibility

Answer 8

Different conditions and method > same/similar results

Question 9

When do you use a line graph?

Answer 9

When the X-Axis affects the graph
Eg. 10% mL of CO2

Question 10

When do you use a bar graph?

Answer 10

When the X-Axis are categories
Eg. Herbicide A/Herbicide B