The Scientific Method (Lesson 3)

Question 1

Science

Answer 1

Way of thinking/ method of investigating.

Question 2

2 types of Scientific Investigation

Answer 2

1) Discovery Science

2) Hypothesis Based

Question 3

Discovery Science

Answer 3

describing nature and qualitative data.

Question 4

Hypothesis Based

Answer 4

Explaining nature and quantitative data (Design experiments + control parameters)

Question 5

Scientific Method

Answer 5

1. Observation
2. Ask a “why” question
3. Formulate a hypothesis
4. Make a prediction
5. Test your prediction
6. Analyze and interpret results
7. Formulate Conclusions

Question 6

Hypothesis

Answer 6

An educated guess based on observations that explains a phenomenon and answers a scientific question (based on past experience)

Question 7

Prediction

Answer 7

Based on the hypothesis you will make a prediction about the outcome of the experiment

Question 8

Null Hypothesis

Answer 8

The default position that the manipulation of the independent variable has no effect on the dependent variable.

Question 9

Theory

Answer 9

Well-substantiated explanation for a set of verified hypothesis

Question 10

Independent Variable

Answer 10

Variable being manipulated in the experiment ( experience a change/manipulation of the independent variable)

Question 11

Dependent Variable

Answer 11

Measured value in the experiment, the tester has no control over it.

Question 12

Control Variables

Answer 12

Variables kept the same before and after the experiment.

Question 13

Control Group

Answer 13

group that is used to compare against the experimental group (a base for comparison)

Question 14

Sample Size

Answer 14

You want it to be large enough to draw conclusions but not waste ressources

Question 15

Biases

Answer 15

Experiments should avoid biases (Ex: double blind test)

Question 16

Replicates

Answer 16

Doing the experiments multiple times more than once allows you to estimate the variability of the results. (more likely to draw conclusions)