WorksheetsAccident at Jefferson High
Total questions: 21
Worksheet time: 11mins
What is the best general attitude to have in the laboratory?
A cautious, serious, and alert attitude
Calm, laid back and no worries
Let's have fun!
This is the time to do our own thing.
What to do with long sleeves?
Roll them up.
Keep them down to protect your arms.
Doesn't matter
What should be done with long hair?
Long hair should be tied back.
Let it flow.
What should be done to loose, dangling jewelry?
It should be removed.
Don't worry about it.
Spread it out on both arms.
What kind of shoes should be worn?
Closed toe
Flip flops
High heels
When you must dillute an acid, what is the best way to combine them? Why?
You should pour acid into water, since it mixes better and reduces splashing
You should pour water into acid, since it mixes better and reduces splashing.
Don't touch acid, it can burn you.
As you dilute an acid, what else should you be doing?
Stirring it.
Checking your phone.
Have a snack.
Watching the clock.
According to the program, what was the best thing to use for cleaning up an acid spill?
Sodium bicarbonate (baking soda)
Another acid
Vinegar
Sodium hydroxide
What should you use to quickly rinse your skin from acid?
Water
Vinegar
Calcium carbonate
Another acid
If you don't rinse your skin of an acid, what will happen?
It will corode through your skin
It won't do anything.
It could kill you.
If your eyes come in contact with acid, how long should you rinse them?
15 minutes
5 minutes
1 hour
2 minutes
What are the proper steps for lighting a gas burner?
check the hose for cracks, plug it in, strike the match, turn on the burner, and light it
turn on gas, light it
turn on the gas, then light the match, light the burner
Should you turn on the gas before lighting the match? Why or why not?
NO! since gas could build up in the air
YES! you don't want the match to burn your fingers.
What's an important thing about glass that you need to know?
that hot and cold glass look alike
that glass breaks easily
that glass can be cracked
What's the best way to determine when glass tubing is cooled?
put the back of the hand by it and sense the heat
touch it gently to see if it's hot
have a friend test it and tell you if it's hot
When heating chemicals in a test tube, is it best to point the opening toward you so you can best see the insides? Why/Why not? How should it be pointed?
it should be pointed away, since the chemicals could boil over the edge
It should be pointed towards you, so you can look inside.
Because water would make an alcohol fire spread, what is the best way to extinguish an alcohol fire?
Tell everyone to move away and use a fire extinguisher
Throw chemicals on it so that it goes out.
Should a fire extinguisher be used on a person whose clothing has caught fire?
Yes, you must put the fire out.
No, fire extinguishers should never be used on people.
When cleaning up after lab work, where should chemicals be thrown away?
In the designated area
Everything should go in the garbage.
Everything should be washed down the sink
Is it wise to store chemicals on a shelf in alphabetical order? Why or why not?
No, you store them by their properties, these chemicals could react if they're alphabetically similar
Yes, it is the easiest way to find what you are looking for.
Where's the best place to store caustic or corrosive chemicals?
Up high, so no one can reach them.
Near the floor, but off the ground in the designated cabinet
