Flashcards in How Science Works Deck (40)

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1

## what do you do in the aim

###
ask a question

identify a problem

formulate an aim

2

## what do you do in the hypothesis

###
research what is known already

formulate a hypothesis

3

## what do you do in the plan

###
plan experiment/observation

(materials, method, variable, controls)

4

## what do you do in the data

###
carry out experiment / make observations

record data (table)

5

## what do you do in the analysis

###
display data (graph)

analyse data

6

## what do you do in the conclusion

###
interpret results

write a conclusion

compare to hypothesis

report results

7

## independent variable

### the variable that you change in an experiment

8

## dependent variable

### the variable that is measured (observed)

9

## control variable

### the variable that you keep the same in an experiment

10

## categorical variable

### non-numerical variable

11

## discrete variable

### the numerical variable a whole number values

12

## continuos variable

### numerical variable that can be any value

13

## fair test / valid

### when there is only one independent variable (all of other variables are kept constant, so they don't affect the experiment (= control variables)

14

## which variable is colour

### categoric

15

## which variable is height

### continuos

16

## which variable is age

### continuos

17

## which variable is number of children

### discrete

18

## which variable is left/right handed

### categoric

19

## which variable is leg number

### discrete

20

## for making tables, which variable goes in the left column?

### independent variable

21

## for making tables, which variable goes in the right column?

### dependent variable

22

## when calculating the mean do you include or exclude anomalies?

### exclude

23

## when drawing graphs, do you use a bar or line graph for a categorical variable?

### bar graph

24

## when drawing graphs, do you use a bar or line graph for a discrete variable?

### bar graph

25

## when drawing graphs, do you use a bar or line graph for a continuos variable?

### line graph

26

## when drawing a graph, which variable goes on the x axis

### independent variable

27

## when drawing a graph, which variable goes on the y axis

### dependent varibable

28

## with the dependent variable, which value do you only plot on the graph

### the mean value

29

## on a bar graph, you should have ... widths of columns

### same

30