LAB SAFETY:Pages 4,5 and 6

Question: What can cause accidents to happen in the lab?

Objective: 1. Students will be able to explain and demonstrate the difference between safe and unsafe lab procedures.

PROCEDURES

What Should I Do:

There is a step in the lab procedures I don’t understand?

a. Ask your lab partner to explain it.

b. Ask the teacher to explain it.

c. Skip the step.

b. Ask the teacher to explain it.

What Should I Do:

If I’m missing a piece of equipment?

a. Tell the teacher and he’ll get you the equipment.

b. Reach over and take it from another group.

c. Try to do the lab without it.

a. Tell the teacher and he’ll get you the equipment.

What Should I Do:

When do I need to wear goggles?

a. During every lab

b. During labs using chemicals

c. During labs using heat.

d. Both b and c.d. Both b and c.

What Should I Do:

When can I take off my goggles?

a. When I need to adjust them

b. When everyone in the lab is finished

c. When I’m finished with the lab

d. Both a and b.

b. When everyone in the lab is finished

What Should I Do:

If I get hurt, even just a little burn?

a. Run out of the room and go to the Health Office.

b. Hide it so the teacher doesn’t get mad.

c. Tell the teacher, even if it’s a small injuryc. Tell the teacher, even if it’s a small injury

What Should I Do:

When I’m finished with my lab?

a. Do other homework.

b. Finish writing up the lab.

c. Help other groups.

b. Finish writing up the lab.

GLASS

What Should I Do:

if glass breaks in the sink?

a. Leave it in the sink.

b. Pick it up with your hands.

c. Tell the teacher and he’ll clean it up.c. Tell the teacher and he’ll clean it up.

What Should I Do:

I want to cool off a hot beaker?

a. Put it on the lab table and let it cool.

b. Put it under cold water.

c. Put it away hot.

a. Put it on the lab table and let it cool.

CHEMICALS

What Should I Do:

I’m about to mix chemicals together?

a. Pour them slowly into one another.

b. Make sure you have safety goggles on.

c. Make sure the chemicals are room temperature.

b. Make sure you have safety goggles on.

What Should I Do:

I finished with the chemicals?

a. Throw them down the sink.

b. Pour them in the garbage can.

c. Follow the directions given in the lab procedures.c. Follow the directions given in the lab procedures.

What Should I Do:

before I leave the classroom if I was using chemicals?

a. Wipe my hands in my pants.

b. Rinse my hands with water.

c. Wash my hands with soap and water.c. Wash my hands with soap and water.

What Should I Do:

I’m suppose to smell a liquid?

a. Bring it up to your nose and breathe deeply.

b. Hold the liquid away from you and use a fanning motion.

c. Never smell a chemical.

b. Hold the liquid away from you and use a fanning motion.

What Should I Do:

I want to taste a chemical?

a. Put your finger in the chemical and taste a little bit.

b. Put the chemical in water and then taste it.

c. Never taste a chemical.c. Never taste a chemical.

What Should I Do:

I need to carry a solid chemical from the teacher’s desk to my lab table?

a. Pour some in your hands.

b. Put the chemical in a cup.

c. Take the whole bottle from the teacher’s desk to yours.

b. Put the chemical in a cup.

What Should I Do:

What does the eye wash faucet do?

a. It dilutes chemicals in your eyes.

b. It weakens chemicals in your eyes

c. It waters down chemicals in your eyes.

d. All the answers above mean the same thing.

a. It dilutes chemicals in your eyes.

d. All the answers above mean the same thing.

HEAT

What Should I Do:

I need to heat a liquid and I don’t know if I should cover it?

a. Cover the liquid because it will heat faster.

b. Never cover a heated container because it could explode.

c. If doesn’t matter if you cover it or not

b. Never cover a heated container because it could explode.

What Should I Do:

I want to find out if a piece of equipment is hot?

a. Pour cold water on it.

b. Touch it.

c. Place your hand near it and see if it’s giving off heat.c. Place your hand near it and see if it’s giving off heat.

What Should I Do:

Before I plug in a hotplate?

a. Make sure your hands are dry.

b. Remove any flammable objects from your table.

c. Tie back long hair.

d. All of the above.d. All of the above.

What Should I Do:

with the hotplate at the end of the experiment?

a. Make sure your hands are dry and then unplug it.

b. Leave it turned on.

c. Even if it’s hot pick it up and put it away.

a. Make sure your hands are dry and then unplug it.

ELECTRICITY

What Should I Do:

Before I plug in an piece of electrical equipment?

a. Make sure your hands are dry.

b. Make sure the equipment is new.

c. Both A and B.

a. Make sure your hands are dry.

CLEANUP

What Should I Do:

when the teacher says, “ It’s time to clean up” who should clean up?

a. Only the boys.

b. Everyone needs to help clean up.

c. Only the new students.

b. Everyone needs to help clean up.

What Should I Do:

I don’t know where to put the equipment?

a. Leave it on your table.

b. Put it back where you got it.

c. On the teacher’s desk.

b. Put it back where you got it.

Read the SpongeBob story and then the directions on the back. Start the

assignment now.

VOCABULARY

Flammable-an object that can catch on fire easily.

Dilute-to weaken and water down.