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Chem – Ch 16

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30
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1

Measurements can be precise but not accurate when they are:

2

An outlier in data is:

3

A conclusion should be based on:

4

A graph must always include:

5

Which improves precision?

6

Which variable is deliberately changed in an experiment?

7

Which tool is commonly used to collect experimental data?

8

Which improves accuracy of an experiment?

9

Accuracy refers to how close a measurement is to:

10

A fair test requires:

11

Which practice reflects good laboratory work?

12

Which step follows data collection?

13

Scientific data should be recorded:

14

Repeated trials in an experiment help to:

15

Which type of graph is best for showing proportions?

16

Quantitative data is data that:

17

Controlled variables are kept:

18

Which term describes closeness of repeated readings?

19

Analyzing data means:

20

Which type of data is temperature?

21

Precision refers to:

22

Reliable data means data that is:

23

Which graph is best for showing change over time?

24

Which best reduces experimental error?

25

A trend in data refers to:

26

A testable explanation for an observation is called:

27

The variable that responds to changes is called:

28

Calibration of instruments improves:

29

Systematic errors mainly affect:

30

Scientific investigation mainly involves:

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