Question 1
Question
In the science lab how do you gain knowledge?
Answer
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reading books
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discussing theories
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doing things
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watching the teacher
Question 2
Question
what must you do if you have an accident?
Answer
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don't tell anyone
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notify the teacher
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scream and run away
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clean it up yourself
Question 3
Question
to be safe in the science classroom you must
Answer
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pay attention
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follow the rules
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use common sense
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all of these
Question 4
Question
Rules in the lab are designed to protect your
Answer
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friendships
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privacy
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skin and eyes
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all of these
Question 5
Question
Always use this size container when you are pouring chemicals:
Answer
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large
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small
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medium
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doesn't matter
Question 6
Question
When you are reading the chemical bottles you must note the following information:
Answer
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name
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concentration
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hazard warnings
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all of these
Question 7
Question
The proper method for mixing acid and water is to
Answer
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acid to water
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water to acid
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it doesn't matter
Question 8
Question
What is the safest way to smell a chemical
Answer
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smell it directly by putting your nose over it
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inhale deeply to determine what it is
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waft the smell to your nose using your hand
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all of these
Question 9
Question
When pouring chemicals:
Question 10
Question
Harmful volatile chemicals which release fumes should be stored in:
Answer
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on the lab table
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a fume hood
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in a closed area
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none of these
Question 11
Question
When using chemicals
Answer
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recycle unused chemicals
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use clean glassware
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only pour out, never in
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all of these
Question 12
Question
At the end of every lab activity you must first
Question 13
Question
Never heat the following using an open flame
Answer
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acids
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volatile chemicals
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water
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metals
Question 14
Question
What controls the flow of gas on the Bunsen Burner?
Answer
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air inlets
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wing tip spreader
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rubber tubing
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valve
Question 15
Question
when lighting a Bunsen Burner with a match or lighter
Question 16
Question
What controls the amount of oxygen flow into the Bunsen Burner
Answer
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air inlets
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wing tip spreader
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valve
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rubber tubing
Question 17
Question
What colour would an ideal flame have
Answer
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transparent
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blue
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orange-red
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yellow
Question 18
Question
If the flame sputters or goes out, you should first
Answer
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relight it immediately
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turn off the gas
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notify the teacher
Question 19
Question
We check all glassware before heating it for cracks or stars to prevent it from
Answer
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leaking
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bursting or exploding
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glowing
Question 20
Question
Why is it not safe to heat a sealed container?
Question 21
Question
Which method can be used to heat a test tube?
Question 22
Question
What two substances look the same whether they are hot or cold?
Answer
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metals and glassware
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liquids and chemicals
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metals and gases
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liquids and glassware
Question 23
Question
The two types of thermometers used in a science classroom are:
Answer
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mercury and bromine
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alcohol and mercury
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alcohol and bromine
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alcohol and water
Question 24
Question
which rule is true for thermometer use?
Answer
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shake it down to get a good reading
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you may clean up a broken thermometer
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keep it on a wire screen when not in use
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leave it on the edge of the table for quick use
Question 25
Question
The most common causes of injury in a science classroom are
Answer
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burns
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cuts from glass
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inhalation of fumes
Question 26
Question
you must never attempt to
Answer
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snap a glass tube in half
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insert one end into a hole of a rubber stopper
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seal one end by melting the glass
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all of the above
Question 27
Question
Centrifuges separate
Answer
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solids from gases
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solids from liquids
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liquids from gases
Question 28
Question
what can happen if a centrifuge is not evenly balanced?
Answer
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explodes
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short circuits
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vibrates violently
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spins faster
Question 29
Question
which of the following must be worn in a science classroom?
Answer
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lab coat
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school uniform
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loose sleeves
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closed leather shoes
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both a) and d)
Question 30
Question
what should you do with long hair?
Answer
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wear a cap
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tie it up
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nothing
Question 31
Question
why is it important to remove rings, watches and contact lenses if you are going to work with chemicals?
Question 32
Question
How should you protect your eyes from chemicals and glass shards?
Answer
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blink often
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open the windows
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wear safety goggles
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be careful
Question 33
Question
how should you protect your hands when pouring chemicals? Use:
Answer
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hot mitts
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safety goggles
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gloves
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tongs
Question 34
Question
The first and most important rule is:
Answer
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put yourself first
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no fooling around in the science classroom
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read your procedure once the lab has started
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run to get your chemicals
Question 35
Question
where should personal belongings be kept during a lab activity?
Question 36
Question
When measuring a substance in a burette or graduated cylinder, your eyes should be
Question 37
Question
Why is it important that you never bring in food, drinks or makeup into the science classroom?
Answer
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your skin, eyes or mouth could develop a rash or burn
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chemicals may become trapped against the skin
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some chemicals are poisonous or cancer causing
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all of these
Question 38
Question
If a chemical gets in your eyes you must
Answer
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ignore it, your tears will remove it
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wash it out for 5 minutes
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wash it out for15 minutes
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spray a chemical to neutralize the reaction
Question 39
Question
if a fire starts in a small container you should
Question 40
Question
If a person's clothing catches fire they should