Working Scienctifically

Question 1

Close to the true value of what you are measuring.

Answer 1

Accurate

Question 2

The process of looking at data and writing about what you have found out.

Answer 2

Analyse

Question 3

A way of presenting data when one variable is discrete or categoric and the other is continuous.

Answer 3

Bar chart

Question 4

A variable that has values that are words.

Answer 4

Categoric

Question 5

What you write down to say what you have found out during an investigation.

Answer 5

Conclusion

Question 6

How sure you are of your conclusion based on the data.

Answer 6

Confidence

Question 7

A variable that has values that can be any number.

Answer 7

Continuous

Question 8

A variable that you have to keep the same in an investigation.

Answer 8

Control variable

Question 9

Words or numbers that you obtain when you make observations or measurements.

Answer 9

Data

Question 10

A variable that changes when you change the independent variable.

Answer 10

Data

Question 11

A variable that can only have whole-number values.

Answer 11

Discrete

Question 12

To discuss the quality of data collected during an investigation and suggest improvements to the method.

Answer 12

Evaluate

Question 13

A variable you change that changes the dependent variable.

Answer 13

Independent variable

Question 14

An experiment or set of experiments designed to produce data to answer a scientific question or test a theory.

Answer 14

Investigation

Question 15

A way of presenting results when there are two numerical variables.

Answer 15

Line graph

Question 16

A smooth line on a graph that travels through or very close to as many of the points plotted as possible.

Answer 16

Line of best fit

Question 17

An average of a set of data, found by adding together all the values in the set and dividing by the number of values in the set.

Answer 17

Mean

Question 18

Carefully looking at an object or process.

Answer 18

Observation

Question 19

A result that is very different from the other measurements in a data set.

Answer 19

Outlier

Question 20

A way of presenting data when one variable is discrete or categoric and the other is continuous.

Answer 20

Pie chart

Question 21

A description of how you will use equipment to collect valid data to answer a scientific question.

Answer 21

Plan

Question 22

This describes a set of repeat measurements that are close together.

Answer 22

Precise

Question 23

A statement that says what you think will happen.

Answer 23

Prediction

Question 24

An error that causes there to be a random difference between a measurement and the true value each time you measure it.

Answer 24

Random error

Question 25

The difference between the lowest and highest values a variable can have.

Answer 25

Range

Question 26

When you repeat measurements in an investigation and get similar results they are repeatable.

Answer 26

Repeatable

Question 27

When other people carry out an investigation and get similar results to the original investigation the results are reproducible.

Answer 27

Reproducible

Question 28

A description of how you will make it less likely that people will be injured, or equipment damaged, and what to do if this happens.

Answer 28

Risk assessment

Question 29

The difference between the highest and lowest measurements of a set of repeat measurements.

Answer 29

Spread

Question 30

An error that causes there to be the same difference between a measurement and the true value each time you measure it.

Answer 30

Systematic error

Question 31

The doubt in the result because of the way that a measurement is made.

Answer 31

Uncertainty

Question 32

A quantity that can change, for example, time, temperature, length, mass.

Answer 32

Variable