1. Don't report any accidents
   Only minor accidents
2. All accidents
   Only major accidents

You should report all accidents to your instructor, no matter how small. This is for the safety of your classmates, the instructor and the class environment.

1. Horse playing
   Chewing gum
2. Tasting chemicals
   Wearing safety goggles

Of the options above, you should always wear safety goggles in the lab. The rest of the answers are prohibited for safety reasons.

1. Look at it from the side
   Look at it from an aerial view
2. Look at the bottom of the tube
   Peer into the tube as much as you can

The correct answer is to look at the test tube from one of its sides. Students should never peer into the tube, as this can be quite dangerous.

1. Watch glass
   Evaporating dish
2. Stirring rod
   Pipestem triangle

The answer is a Pipestem triangle. It's actually in the shape of a triangle and is used to hold a hot crucible in place. The triangle also has wires that are woven through it.

1. Wearing lab aprons
   Wearing safety goggles
2. Eating food
   Wearing gloves

The correct answer is eating food. Food and chemicals should never be within the same vicinity. This also goes for drinking soda and juice.

1. Note the smell of the chemicals you've been working with
   Use soap to wash your hands
2. Keep your gloves and apron on
   Leave the test tubes for your teacher to clean up

Always wash your hands thoroughly before leaving the lab. This is to wash away any potential chemical residue and for hygienic purposes.

1. Sneakers
   Running shoes
2. Open sandals
   Boots

The right answer is open sandals. This is to prevent any chemicals from potentially spilling on exposed skin.

1. Reactivity
   Ignitability
2. Enzymatic
   Toxicity

"Enzymatic" is not used to describe hazardous waste. The other trait, which is missing on this list, is "corrosivity."

1. Toward your teacher
   Away from you and other lab members
2. Toward you and other lab members
   Towards the ground

The right answer is away from you and other lab members. For safety reasons, test tubes should never face you (just in case there is a spill).

1. It might change color
   It could taste bad
2. It could smell funny
   It could splatter

The correct answer is that it could splatter. When water is added to a solution of concentrated acid, the chemicals may start to splatter and strike lab members.

1. Put a Band-Aid​ on it
   Dip the affected skin in cold water
2. Apply burn cream
   Wash it with soap and water

When treating a burn on the skin, always dip the affected area in cold water. You should then let your instructor know what happened.

1. Slowly add the water to acid while stirring it
   Slowly add the acid to water while stirring it
2. Quickly pour the water into an acid solution
   Add the acid to water and shake the solution

To properly mix water and an acid solution together, you should slowly add the acid to water while stirring it. This is to prevent any dangerous splattering from taking place.

1. Micro spatula
   Mortar and pestle
2. File
   Funnel

A mortar and pestle is used for pressing down solids into a powder form. The mortar refers to the bowl and the pestle refers to the object that you use to press and mix the solids.

1. Use an eye wash fountain to thoroughly wash the eye
   Put an eye patch over it
2. Do nothing
   Use eye drops to clean out any chemicals

If your eye is affected by a chemical, you should use an eyewash​ fountain to thoroughly wash it. Your instructor should then be notified of the situation.

1. Use chemicals to sanitize the pan balance
   Clean any glassware for use
2. Wear safety equipment, including goggles, gloves and aprons
   Clean the work station

You should never use any kinds of chemicals on a pan balance. You should, however, clean your work station/glassware and wear safety equipment before any kind of lab work.

1. You should never smell the chemicals inside of a tube
   Place your nose directly above the tube
2. "Fan" the fumes from the tube and toward your nose (using your hands)
   Press your nose to the side of the tube

The correct answer is as follows: Use your hands to create a "fan" motion that will sweep the fumes from the tube and toward your nose. This way, your face is safely away from the tube.

1. Gum
   Food
2. Drinks
   Lab notebook

You are allowed to bring a lab notebook into the lab to jot down any notes. Food, gum and drinks are not be allowed due to potential cross-contamination​.

1. After lab work is over
   Read the procedures while completing lab work
2. Before you enter the vicinity of the lab
   Right after entering the lab

Before you enter the vicinity of the lab, you should already be familiar with any applicable procedures. This is so that work can be completed in a timely and efficient manner.

1. Funnel
   Pipet
2. Test tube holder
   Test tube rack

As its name implies, a test tube holder is used to "hold" test tubes. This is particularly useful when the tubes are too hot to touch.

1. To heat up test tubes
   To mend broken test tubes
2. To safely hold test tubes that are not in use
   To wash test tubes

When test tubes are not in use, they are safely held in place via a test tube rack. This can also be used for reactions in a test tube.

1. Wire gauze
   Beaker
2. Funnel
   Test tube holder

Beakers are used to safely hold liquids for heating purposes. They come in a variety of sizes and usually come with measurements on the side for accuracy.

1. Micro spatula
   Stopper
2. Pipet
   Tongs

A pipet is used to transfer liquids from one beaker (or glassware) to another. It's shaped like a long tube and some even have measurements along the side.

1. Tongs
   Wash bottle
2. Dropper
   Lab burner

Tongs are used to hold a variety of objects that may be too hot to touch with the human hand. Some of these include flasks and crucibles.

1. Crucible
   Watch glass
2. Wire gauze
   Stopper

A stopper often comes in rubber textures and is used to safely seal a variety of glassware. This is to prevent any potential spills due to accidents.

1. Wire brush
   Forceps
2. Dropper
   Pipet

A wire brush, or a spout brush, is used to clean a variety of narrow glassware, including test tubes. It's also long and thin, which is great for cleaning any hard-to-reach crevices.

1. A vessel that can safely be placed over the top of a beaker
   A vessel that is used for measuring temperture
2. A vessel that can hold liquids for evaporation purposes
   A vessel that is used to hold chemicals for weighing or heating

A watch glass is a multi-purpose vessel in the lab that can hold liquids and chemicals for heating, weighing and evaporation. One thing it can't do is measure temperature.

1. Wash bottle
   Micro spatula
2. Stirring rod
   Wire brush

As its name implies, stirring rods are used for stirring purposes. They are also made from glass and are typically about as long as a pencil.

1. Dropper
   Pipet
2. Forceps
   Micro spatula

Micro spatulas look like miniature scoops that come in a variety of sizes and shapes. They usually have a rounded edge at the end for scooping powders and substances.

1. The glassware needs to be cleaned
   A reaction is happening in the glassware
2. The glassware is empty
   The glassware is broken

"MT" sounds like "empty," which is exactly what it means in the context of lab safety. When you see a label that says "MT," it's just a short way of saying the object is empty.

1. 150°F
   125°F
2. 50°F
   110°F

The correct answer is 125°F. This is the threshold for heating up cylinders, which should also never drop below 50°F.

1. Alcohol thermometer
   Lauric acid
2. Copper carbonate
   Digital pressure sensor

The mercury that lies within a Mercury barometer is considered to be toxic in a lab. Fortunately, mercury barometers may be replaced with a digital pressure sensor.

1. Carbon disulfide
   Asbestos
2. Anthracene
   Chlorine

The correct answer is asbestos, which is a known carcinogen. A carcinogen is potentially lethal to humans because it is known to cause cancer.

1. Sodium hydrogen carbonate
   Nitroparaffin
2. Oxalic acid
   Potassium chlorate

Another fancy way of saying baking soda is "sodium hydrogen carbonate," which is used to neutralize acids. This should be used during an acid spill on the ground, but not on human skin.

1. Blue
   Green
2. Yellow
   White

The correct answer is green. The NFPA stands for National Fire Protection Association, which includes a handy hazard diamond key that indicates various colors and their association to potential hazards. Those colors are blue, yellow, white and red. Green is not one of them.

1. A Florence flask
   A Volumetric flask
2. An Erlenmeyer flask
   A Büchner flask

The Erlenmeyer flask was invented by Emil Erlenmeyer. It is also known as 'titration flask.' The bottom of this flask is wide, which gradually narrows toward its neck.