The Scientific Method 2.0

Question 1

What is the scientific method?

Answer 1

A process of investigation where problems are identified and their explanations are tested by carrying out experiments.

Question 2

What are two limitations of the scientific method?

Answer 2

1. Accidental discoveries
2. Extent of our knowledge.

Question 3

What is observation?

Answer 3

An unbiased, accurate report of an event.

Question 4

What is a hypothesis?

Answer 4

An educated guess or idea on an observation.

Question 5

What is an experiment?

Answer 5

A test conducted to test a hypothesis.

Question 6

What is data?

Answer 6

Measurements, observations, and info gathered during an experiment.

Question 7

What is a theory?

Answer 7

A hypothesis that has been supported by different experiments.

Question 8

What is a variable?

Answer 8

A factor that has been changed in the course of an experiment.

Question 9

What is a control?

Answer 9

A comparison used to provide a standard against which to compare the results of your investigation.

Question 10

What is random selection?

Answer 10

The process of choosing a sample for experimentation without a method or conscious decision.

Question 11

What is replication?

Answer 11

A repeat of an experiment.

Question 12

What is double-blind testing?

Answer 12

An experiment where neither the tester nor the patient knows what treatment is being given.

Question 13

What is a placebo?

Answer 13

A substance with no active ingredient used as a control in an experiment.

Question 14

What information should be included in the conclusion of a scientific investigation?

Answer 14

1. Hypothesis
2. Results analysed

Question 15

Why is random selection important during an experiment?

Answer 15

It increases reliability and reduces bias.

Question 16

Why is a control used in an experiment?

Answer 16

To compare the results of the experiment.

Question 17

What are features of good experimental design?

Answer 17

1. Large sample size
2. A control
3. Repetition of experiment
4. Random selection
5. Double-blind testing

Question 18

Where do scientists publish results of an experiment?

Answer 18

Scientific Journal.

Question 19

Why should scientists publish their results?

Answer 19

1. To make information widely available.
2. Spread knowledge.

Question 20

What should be included in a conclusion for a scientific journal?

Answer 20

1. Results analysed
2. Hypothesis confirmed

Question 21

What is the purpose of carrying out an experiment?

Answer 21

To test the hypothesis.

Question 22

Why is an experiment repeated?

Answer 22

To ensure reliability.