Basic Experiment Knowledge

Question 1

Hypothesis

Answer 1

“If” and “then” statement which is an educated guess.

Question 2

Independent Variable

Answer 2

Variable you change.

Question 3

Dependent Variable

Answer 3

Variable you measure.

Question 4

Control Variable

Answer 4

Variable that need to be kept constant to make it a fair test.

Question 5

Observation

Answer 5

Using your senses to observe things in an experiment.

Question 6

Inference

Answer 6

Making an educated guess based off observations.

Question 7

Quantitative Data

Answer 7

Data that has a numerical amount.

Question 8

Qualitative Data

Answer 8

Data that you can observe.
E.g. Colour changes.

Question 9

Accuracy

Answer 9

Consistently getting the same data on each trial.

Question 10

Placebo

Answer 10

Given to participants to ensure intended drug works.

Question 11

Reliability.

Answer 11

Can you repeat the experiment with similar results.

Question 12

Validity

Answer 12

Whether the procedures in it accurately measure what was intended to be measured.

Question 13

Human Error

Answer 13

Is simply a mistake.

Question 14

Random Error

Answer 14

Unpredictable errors that can occur in all experiments

Question 15

Systematic Error

Answer 15

Occurs because of the way in which an experiment is designed or due to problems with equipment.