What size containers should be used for pouring?
A small container
How many times should you read the label information before you open the container?
Twice
Is it important to be exact when following the instructions?
Yes
When diluting acid, do you add acid to water or water to acid?
Add acid to water
Where should you hold your hand when pouring from bottles?
Hold your hand over the label
If you are given permission to smell a chemical, how should you do it?
Waft the chemical
Should you use glassware if it is dirty?
No
What should you do with leftover chemicals?
Put them in the proper waste container
How can you draw small volumes of liquids into a pipette safely?
Using a bulb
If you spill a liquid chemical, what should you do?
Tell the teacher
What three things should be cleaned up after a lab?
Glassware, hands, and the bench
What does the valve on the bottom of the Bunsen burner control?
Controls the flow of gas
Before hooking up a Bunsen burner to the gas line, what should you look for?
Check the burner for cracks
What two things can be used to light the burner?
A match or flint lighter
What is the hottest part of the flame?
The tip of the inner cone
If your flame sputters or goes out, what should you do?
Turn off the gas
If you smell gas, what should you do?
Turn off the gas
Before you heat glassware, what should you check for?
Check for cracks or stars
Is it safe to heat a sealed container?
No
How can you safely carry a heated object?
Carry a heated object with tongs or gloves
Does a lab thermometer need to be shaken down?
No
Why shouldn't a thermometer be placed directly in the Bunsen burner flame or on a hot plate?
It will explode
What is the purpose of laying a thermometer on a wire screen?
So the thermometer does not roll away
What should you do if you break a thermometer?
Tell your teacher to pick it up
What is one of the most common causes of injury in the laboratory?
Stabbing yourself with the glass tube
What is the purpose of using an inserter?
To safely put glass tubing into a rubber stopper
If you do not have an inserter, how should you insert glass tubing into a rubber stopper? How can you protect your hands?
Use a lubricant and protect your hands with leather gloves
If you have just one sample that needs to centrifuged, what must you do before turning the centrifuge on?
Place a test tube with equal parts water the opposite of the other tube
If the centrifuge starts to vibrate or move across the countertop, what should you do?
Turn it off
How should you stop a spinning centrifuge?
Wait for the centrifuge to stop spinning
Describe the type of clothing you should wear on days when you will be working in the lab?
Sturdy and natural fabrics; Long, covering clothing
What types of shoes are appropriate for the lab?
Closed toe shoes
How should you protect your eyes?
Take out contacts and wear protective goggles
Why is it important to remove rings, watches, and contact lenses before working in the lab? Is it always necessary to remove these items?
They can trap chemicals and it is not always necessary to remove these items
How can you protect your hands when working with corrosive chemicals?
Wear the proper gloves
What is the most important behavior rule in the lab?
Don't fool around in the lab
Where should you keep personal belongings that you bring to the lab?
Outside of the lab
What is a safe way to read a burette that is above your eye level?
Lower it to your eye level or stand on a step stool
What should you do if you cut yourself?
Clean and dry cut
How long should you wash your eyes in the eyewash?
15 minutes
What should you do for small splashes of noncorrosive chemicals on your skin?
Wash your skin with water
How do you extinguish a small fire in a container?
Covering the container
Who should operate the fire extinguisher?
The teacher
What are the two ways to put out a clothing fire?
Using the shower or a fire blanket