The Laboratory (Term 1)

Question 1

What is a hazard?

Answer 1

Something that has the potential to cause harm

Question 2

What is a risk?

Answer 2

The probability a person will be harmed if exposed to a hazard

Question 3

What is the name we give to items we use in the laboratory?

Answer 3

Equipment

Question 4

Which piece of equipment is used to measure liquids?

Answer 4

Measuring cylinder

Question 5

Which piece of equipment is used to measure temperature?

Answer 5

Thermometer

Question 6

Which piece of equipment is used to measure mass?

Answer 6

Balance

Question 7

Which piece of equipment is used to hold test tubes?

Answer 7

Test tube holder

Question 8

Which piece of equipment is used to hold liquids for evaporation?

Answer 8

Evaporating dish

Question 9

Which piece of equipment is used to hold a filter paper?

Answer 9

Filter funnel

Question 10

Which two things should a student draw scientific diagrams with?

Answer 10

Pencil & ruler

Question 11

How many dimensions should scientific diagrams be drawn in?

Answer 11

Two dimensions (2D)

Question 12

Which two pieces of equipment would you place above a Bunsen burner to support an evaporating dish?

Answer 12

Tripod and gauze

Question 13

Which piece of equipment should be placed under a Bunsen burner?

Answer 13

Heat proof mat

Question 14

What colour is the flame on a Bunsen burner when it is set to a ‘safety flame’?

Answer 14

Yellow

Question 15

What colour is the flame on a Bunsen burner when the air hole is closed?

Answer 15

Yellow

Question 16

What colour is the flame on a Bunsen burner when the air hole is open?

Answer 16

Blue

Question 17

What colour is the flame on a Bunsen burner when it is set to a ‘heating flame’?

Answer 17

Blue

Question 18

Hot hot can the hottest part of the flame reach, when the Bunsen burner is heating?

Answer 18

1,000°C

Question 19

When a Bunsen burner is lit, what should be done first? Open the gas tap or light the match?

Answer 19

Light a match and place it just above the top of the barrel, with your hand below the flame AND THEN open the gas tap fully.

Question 20

Identify two items of protective clothing you might wear in the laboratory.

Answer 20

Safety goggles, laboratory coat.

Question 21

What do we call a statement that explains a cause-and-effect relationship?

Answer 21

Hypothesis

Question 22

What do we call a statement that contains an ‘if-then’ statement that describes what happens when something changes?

Answer 22

Hypothesis

Question 23

In an experiment, what do we call the factor we choose to change?

Answer 23

Independent variable

Question 24

In an experiment, what do we call the factor that changes as a result of changing the independent variable?

Answer 24

Dependent variable

Question 25

In an experiment, what do we call the factor that we measure?

Answer 25

Dependent variable

Question 26

In an experiment, what do we call the factors we keep the same (so they don't influence the results)?

Answer 26

Control variables

Question 27

In an experiment, what is an independent variable?

Answer 27

The factor we choose to change

Question 28

In an experiment, what is a dependent variable?

Answer 28

The factor that changes as a result of changing the independent variable (what we choose to measure).

Question 29

In an experiment, what are control variables?

Answer 29

The factors we keep the same (so they don't influence the results).

Question 30

What is a scientific report?

Answer 30

Where you record and present your findings about what you did in an experiment.

Question 31

What are the six steps to creating a graph?

Answer 31

1. Identify the variables. 2. Determine the variable range. 3. Determine the scale of the graph. 4. Number and label each axis and title the graph. 5. Determine the data points and plot them on the graph. 5. Draw the graph (the type of drawing depends on the type of graph)

Question 32

On a graph, which axis is the independent variable?

Answer 32

X-axis

Question 33

On a graph, which axis is the dependent variable?

Answer 33

Y-axis

Question 34

How do we determine the range of a data set?

Answer 34

Subtract the lowest data point from the highest data point

Question 35

The following instruments all measure quantities of ... ? Trundle wheel Metre rule Tape measure Tape measure

Answer 35

Distance/length

Question 36

The following instruments all measure quantities of ... ? Volumetric flask Measuring cylinder

Answer 36

Volume

Question 37

The following instruments all measure quantities of ... ? Thermometre

Answer 37

Temperature

Question 38

The following instruments all measure quantities of ... ? Clock Stopwatch

Answer 38

Time

Question 39

The following instruments all measure quantities of ... ? Weighbridge Beam balance Spring balance Electronic balance

Answer 39

Mass

Question 40

The following units are all measurements of ... ? Kilometre Metre Centimetre Milimetre

Answer 40

Distance/length

Question 41

The following symbols all represent measurements of ... ? km m cm mm

Answer 41

Distance/length

Question 42

The following units are all measurements of ... ? Litre Mililitre

Answer 42

Volume

Question 43

The following units are all measurements of ... ? Tonne Kilogram Gram Miligram

Answer 43

Mass

Question 44

The following units are all measurements of ... ? Hour Minute Second

Answer 44

Time

Question 45

The following units are all measurements of ... ? Degrees celsius Kelvin

Answer 45

Temperature

Question 46

The following symbols all represent measurements of ... ? L mL

Answer 46

Volume

Question 47

The following symbols all represent measurements of ... ? t kg g mg

Answer 47

Mass

Question 48

The following symbols all represent measurements of ... ? h min s

Answer 48

Time

Question 49

The following symbols all represent measurements of ... ? °C

Answer 49

Temperature