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Year 7 Science > The Laboratory (Term 1) > Flashcards

The Laboratory (Term 1) Flashcards

1
Q

What is a hazard?

A

Something that has the potential to cause harm

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2
Q

What is a risk?

A

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

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3
Q

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

A

Equipment

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4
Q

Which piece of equipment is used to measure liquids?

A

Measuring cylinder

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5
Q

Which piece of equipment is used to measure temperature?

A

Thermometer

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6
Q

Which piece of equipment is used to measure mass?

A

Balance

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7
Q

Which piece of equipment is used to hold test tubes?

A

Test tube holder

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8
Q

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

A

Evaporating dish

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9
Q

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

A

Filter funnel

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10
Q

Which two things should a student draw scientific diagrams with?

A

Pencil & ruler

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11
Q

How many dimensions should scientific diagrams be drawn in?

A

Two dimensions (2D)

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12
Q

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

A

Tripod and gauze

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13
Q

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

A

Heat proof mat

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14
Q

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

A

Yellow

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15
Q

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

A

Yellow

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16
Q

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

A

Blue

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17
Q

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

A

Blue

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18
Q

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

A

1,000°C

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19
Q

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

A

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.

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20
Q

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

A

Safety goggles, laboratory coat.

21
Q

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

A

Hypothesis

22
Q

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

A

Hypothesis

23
Q

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

A

Independent variable

24
Q

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

A

Dependent variable

25
Q

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

A

Dependent variable

26
Q

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

A

Control variables

27
Q

In an experiment, what is an independent variable?

A

The factor we choose to change

28
Q

In an experiment, what is a dependent variable?

A

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

29
Q

In an experiment, what are control variables?

A

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

30
Q

What is a scientific report?

A

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

31
Q

What are the six steps to creating a graph?

A
  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.
  6. Draw the graph (the type of drawing depends on the type of graph)
32
Q

On a graph, which axis is the independent variable?

A

X-axis

33
Q

On a graph, which axis is the dependent variable?

A

Y-axis

34
Q

How do we determine the range of a data set?

A

Subtract the lowest data point from the highest data point

35
Q

The following instruments all measure quantities of … ?

Trundle wheel
Metre rule
Tape measure
Tape measure

A

Distance/length

36
Q

The following instruments all measure quantities of … ?

Volumetric flask
Measuring cylinder

A

Volume

37
Q

The following instruments all measure quantities of … ?

Thermometre

A

Temperature

38
Q

The following instruments all measure quantities of … ?

Clock
Stopwatch

A

Time

39
Q

The following instruments all measure quantities of … ?

Weighbridge
Beam balance
Spring balance
Electronic balance

A

Mass

40
Q

The following units are all measurements of … ?

Kilometre
Metre
Centimetre
Milimetre

A

Distance/length

41
Q

The following symbols all represent measurements of … ?

km
m
cm
mm

A

Distance/length

42
Q

The following units are all measurements of … ?

Litre
Mililitre

A

Volume

43
Q

The following units are all measurements of … ?

Tonne
Kilogram
Gram
Miligram

A

Mass

44
Q

The following units are all measurements of … ?

Hour
Minute
Second

A

Time

45
Q

The following units are all measurements of … ?

Degrees celsius
Kelvin

A

Temperature

46
Q

The following symbols all represent measurements of … ?

L
mL

A

Volume

47
Q

The following symbols all represent measurements of … ?

t
kg
g
mg

A

Mass

48
Q

The following symbols all represent measurements of … ?

h
min
s

A

Time

49
Q

The following symbols all represent measurements of … ?

°C

A

Temperature

Year 7 Science (1 decks)

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