Variables

Question 1

What are varibles?

Answer 1

Factors that influence the outcome of an investigation

Question 2

State the three variables

Answer 2

Independent, dependent and fixed

Question 3

What is the independent variable?

Answer 3

• One thing you can change
• Only one in an experiment
• thing that is different or changes
• The investigator can control
  *

Question 4

What word should you use when describing the independent variable?

Answer 4

Different

Question 5

What should you write for the independent variable?

Answer 5

Two marks

Different (1) … variable (1)

Question 6

What should you not write when describing the independent variable?

Answer 6

1. Give a reason
2. Give a measurement

Question 7

What is the dependent variable?

Answer 7

Changes that happens because of the independent variable.

The outcome/results/observation

Question 8

What words help identify the dependent variable?

Answer 8

1. Measure
2. Observe

Question 9

What words should you use when describing the dependent variable?

Answer 9

Two marks

Verb (observe/measure) … the variable

Question 10

What should you not write when describing the dependent variable?

Answer 10

Don’t:

1. give a reason
2. give a measurement

Question 11

What is the fixed variable?

Answer 11

Remains constant and unchanged. Ensures that there is only one independent variable

Question 12

How do you identify the fixed variable?

Answer 12

• Measurements are the same
• Words such as each

Question 13

How should one explain the fixed variable?

Answer 13

Three marks

1. Words such as same, constant, each
2. Measurement
3. Apparatus