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- 1. Multiple Choice
Who invented the Bunsen Burner?Albert EinsteinRobert BunsenGeorge BurnerCharles Darwin - 2. Multiple ChoiceWhich part of the Bunsen flame is the hottest?ABCD
- 3. Multiple Choice
The gas should be turned on ____________ lighting the match.
Before
After
- 4. Multiple ChoiceWhen is it OK to eat or drink in the lab?AlwaysNever
- 5. Multiple ChoiceIf you break glassware in the lab, you should...Tell the teacherClean it up quickly before the teacher noticesScream at the top of your lungs
- 6. Multiple ChoiceBefore leaving the lab you should always wash your hands.TrueFalse
- 7. Multiple Choice
What do you call the part of the burner that "twists" ?
Base
Collar
Cylinder
- 8. Multiple ChoiceGoggles must be worn when using or working with a Bunsen BurnerFalseTrue
- 9. Multiple Choice
To produce the most heat, you should twist the collar until you see ______
A dark blue cone
An orange cone
A yellow cone
A light blue cone
- 10. Multiple ChoiceA possible explanation for a set of observations or answer to a scientific question is called a(n)predictionhypothesistheorylaw
- 11. Multiple Choice
Air hole closed means __________ safety flame and air hole open means _________ heating flame.
Yellow, blue
Blue, yellow
Blue, orange
Yellow, green
- 12. Multiple Choice
During an experiment, a bunsen burner is placed on:
Gauze mat
The laboratory bench
A heatproof mat
Tripod
- 13. Multiple Choice
When you first light a bunsen burner, the flame should be:
Yellow
Blue
Either
Non existent. You shouldn't be using a bunsen burner to light things in the lab
- 14. Multiple Choice
A gauze mat.....
Protects the tripod
Distributes heat evenly
Protects the laboratory bench
Wraps around a test tube to cool it down
- 15. Multiple Choice
The hottest part of a flame is _________ degrees celsius.
150
15
15000
1500
- 16. Multiple Choice
First steps to using a bunsen burner:
Place on heat proof mat, connect gas hose to a gas tap and make sure the air hole is closed
Place on heat proof mat, connect gas hose to a gas tap and make sure the air hole is open
Place on heat proof mat, connect gas hose to a gas tap and light the bunsen burner
Place on the bench, connect gas hose to a gas tap and make sure the air hole is open
- 17. Multiple Choice
A mixture of __________ and __________ burn at the top of the barrel to produce a flame
Air, carbon dioxide
Gas, carbon dioxide
Gas, air
Air, helium
- 18. Multiple Choice
Which of the following part of Bunsen burner is used to support the burner so that it will not fall over.
air hole
barrel
collar
base
- 19. Multiple Choice
Which of the following is the correct procedure to light up a Bunsen burner?
Step 1: turn the collar and close the air hole
Step 2: turn on the gas tap
Step 3: use the lighter to light up the Bunsen burner
Step 1: turn the collar and open the air hole
Step 2: turn on the gas tap
Step 3: use the lighter to light up the Bunsen burner
Step 1: turn on the gas tap
Step 2: turn the collar and close the air hole
Step 3: use the lighter to light up the Bunsen burner
- 20. Multiple Choicepipette holderwire gauzeclay trianglecrucible
- 21. Multiple Choice
The natural gas can only mix with air at the mouth of the chimney and as a result an incomplete combustion occurs, this happens:
when the air hole is half closed.
when the air hole is fully opened.
when the air hole is fully closed.
- 22. Multiple Choice
The air is drawn into the chimney, where it mixes with the natural gas and it ensures complete combustion, this happens:
when the air hole is fully closed.
when the air hole is fully opened.
when the air hole is half opened.
- 23. Multiple Choice
During an experiment, a bunsen burner is placed on:
Gauze mat
The laboratory bench
A heatproof mat
Tripod
- 24. Multiple Choice
Your bunsen burner with a safety flame is knocked over, what do you do?
Place it back on the heatproof mat, it is only on safety flame so this is safe to do.
Turn off the gas at the gas tap, pick up the bunsen burner by the barrel and place it back on the mat
Turn off the gas at the gas tap, then let your teacher know
Panic, don't do anything because you're a bit scared you'll get into trouble
- 25. Multiple Choice
What is the hottest part of a blue flame? This is where you should hold a test tube when heating materials in a test tube
1
2
3
4
- 26. Multiple Choice
When lighting a bunsen burner, the
collar must be open, opening the air holes
collar must be shut, closing the air holes
collar must be half open, slightly opening the air holes
it doesn't matter what position the collar is in
- 27. Multiple Choice
You are trying to turn off a bunsen burner but it won't turn off. What do you do?
Leave it unattended on safety flame
Let your teacher know immediately
Hit the Emergency Stop valve that shuts off the gas before anyone gets hurt
Remove the hose from the gas tap as this will turn off the bunsen burner
- 28. Multiple Choice
When heating a test tube over a bunsen burner, it should be
held pointing straight up to ensure it heats up evenly and not moving it around
held at an angle toward you so you can see in, moving it around slightly to ensure it doesn't overheat
held at an angle away from you as that is safer, moving it around slightly to ensure it doesn't boil over
held at an angle away from you as that is safer, and not moving
- 29. Multiple Choice
You have finished mixing some chemicals for a practical, what should be done with them?
flushed down the sink
all poured in together into a large conical flask for easier
Ask your teacher, they will need to be disposed of safely
left on the bench for someone else to clean up for you
- 30. Multiple Choice
(Select all the right answers).
The lab can be a busy and noisy place with lots of people. You should always:
Be mindful of others around you
Adhere to the safety rules
Use your inside voice, no yelling
Be patient when sharing equipment. Too many scientists spoils the experiment!
- 31. Multiple Choice
When finished with an experiment,
you and your lab partner are to clean up all used materials and put equipment back where it belongs
leave everything out, its not your job to clean up
put away half of your equipment, some is better than none right?
Let your lab partner do all the cleaning up by themselves, they can handle it
- 32. Multiple Choice
What is this?
Test tube
Test tube holder
Conical Flask
Volumetric flask
- 33. Multiple Choice
What is this?
conical flask
flask
test tube
watch glass
- 34. Multiple Choice
What is a gauze mat used for?
frisbee in the lab when you are bored
a drink coaster
supports a beaker while it's heating
supports a beaker while it's heating AND spreads heat evenly
- 35. Multiple Choice
What is a measuring cylinder used for?
Accurately measures volumes of chemicals
Accurately measures weight of chemicals
A suitable container to mix chemicals in
A suitable drinking cup when you don't have a drink bottle
- 36. Multiple Choice
When you lift a bunsen burner, you hold it from the:
Barrel
Gas hose
Base
Collar
- 37. Multiple Choice
What color flame results from complete combustion?
Yellow
Blue
- 38. Multiple Choice
What color flame results from incomplete combustion?
Yellow
Blue
- 39. Multiple Choice
Which statement is correct?
The barrel controls the flow of oxygen and the gas control valve controls the flow of methane
The barrel controls the flow of methane and the gas control valve controls the flow of oxygen
The barrel controls the flow of oxygen and the gas control valve controls the flow of air
The barrel controls the flow of natural gas and the gas control valve controls the flow of methane
- 40. Multiple Choice
Which is a violation of safety?
Tie back hair before the lab
Put away paper like notebooks and paper towels at the lab station
Wear dangling jewelry
wear protective goggles and gloves
- Answer choicesTagsAnswer choicesTags