lab safety review run this powerpoint presentation to help you study. you should also use your...
TRANSCRIPT
Lab Safety Review
Run this PowerPoint presentation to help you study. You should also
use your notes!!!!!
True or False?
Chemicals that are safe by themselves will not be hazardous when mixed together.
FALSE
Just because a chemical is not hazardous by itself does not ensure that it will not be hazardous when mixed with another chemical.
True or False?
Eating and drinking is not permitted in the laboratory.
TRUE
True or False?
It is not necessary to wash your hands after every laboratory experiment.
FALSE
You should always wash your hands after every experiment!!!!
True or False?
All sharp and pointed objects should be handles with extreme care.
TRUE
Make sure the pointed end of scissors or anything sharp is always facing down!!!
True or False?
It is unnecessary to report broken or chipped glassware or slides to the teacher.
FALSE
Tell your teacher ASAP about any accidents or broken equipment!!!!
True or False?
All glassware, equipment, and your work station area should be cleaned as soon as you have finished your investigation.
TRUE
True or False?
Goggles only need to be worn when performing dissections.
FALSE
You must wear goggles whenever you are working with heat or chemicals AND whenever your teacher tells you too!!!
True or False?
When heating materials in a test tube, make sure the test tube is facing away from you and your partner.
TRUE
True or False?
Direct viewing of the sun is ok as long as you have sunglasses on.
FALSE
Direct viewing of the sun should be avoided at all times.
True or False?
It is ok to dump a chemical down the sink.
FALSE
Many chemicals CANNOT be discarded down the sink!!!
True or False?
If any glassware breaks, the student should clean it up right away.
FALSE
You must notify your teacher right away if any glassware breaks. Your teacher will clean it up and put the broken glass in a special box that is used for broken glass.
True or False?
Perform only those experiments for which you have been instructed.
TRUE
Let’s review…
Identify the improper lab procedure observed in the diagram.
1. He is not wearing goggles.
2. His hand is wet as he is plugging in electrical equipment.
3. The end of the knife and a glass jar is on the edge of the desk.
4. The glass jar is cracked.
Identify the improper lab procedure observed in the diagram.
1. He is not using the wafting technique.
2. He is drinking a can of soda as he is performing a lab.
3. The student is yanking the plug out of the electrical socket.
Identify the improper lab procedure observed in the diagram.
She is not using two hands to carry the microscope.
Identify the improper lab procedure observed in the diagram.
1. Students are joking around.
2. The glass erlenmeyer flask is on a stack of books where it can easily fall off.
3. No one is wearing goggles.
Identify the improper lab procedure observed in the diagram.
1. The test tube being heated is facing the girl.
2. Both students are not wearing goggles.
3. The girl is not paying attention and is abut to knock the graduated cylinder over.
Identify the improper lab procedure observed in the diagram.
He is handling an animal without gloves,
Identify the improper lab procedure observed in the diagram.
1. The student is not wearing goggles.
1. He is being exposed to NOXIOUS fumes. This procedure should have been done in a fume hood.