Lab Safety

When there is an accident in the lab...

• Fix it before anyone sees!

• Immediately report it to your teacher.

• Run out of the room as fast as possible.

• Try to make sure the teacher knows it wasn't your fault.

When working with acids, DO NOT:

• keep the bottles of concentrated acids in the prep room.

• dilute and neutralize acids before pouring them down the sink.

• add water to the acid stock solution.

• keep any solutions in the fume hood and wear safety goggles

Tags

NGSS.HS-ETS1-3

Goggles are required ________________

• every day.

• For labs with heat, glassware or chemicals.

• For taking notes.

• For walking through the hallway.

Review safety procedures ____________________

• At the beginning of the year only.

• At the end of the year.

• In the middle of lab.

• Before beginning any lab.

It's important to put the lid back on chemical bottles because _________________________

• they may explode if exposed to air.

• they will absorb water if exposed to air.

• the chemicals will get out

• your teacher will be mad at you.

When it's time to dispose of a chemical, ____________________________

• dump it down the drain.

• pour it in the garbage.

• pour it back into the stock bottle.

• ask the teacher before disposing of any chemicals.

You should __________________ use flammable chemicals in a room with an open flame.

• always

• carefully

• never

• often

When conducting labs with chemicals, heat, or glassware:

• wear splash goggles with vents

• wear sandals and shorts

• taste the chemicals to get an idea of what they are

• wear closed-toed shoes and long pants

When you need chemicals from a stock bottle:

• take the stock bottle back to your desk

• use an unlabeled cup or water bottle

• transfer only what you need into a labeled container

• take twice what you need, just in case

Choose the true statement about lab glassware:

• Glassware is totally safe and can never hurt you.

• You can tell if glass is hot or cold just by looking at it.

• All kinds of glass are always safe to heat up.

• When heating substances, only safety glass should be used.