Lab safety
Lab Safety
Lab safety
Safety Symbols
Miscellaneous
100
If an accident occurs, what should you do immediately?
Inform the teacher
100
Never handle broken glass with your bare hands! Instead you should...
Inform the teacher of the broken glass
100
______ all work surfaces and equipment before leaving the lab.
Clean
100
Draw the eye protection symbol
100
Draw the symbol for explosion safety.
200
When you are working around any chemicals or heating devices, always wear ______
Safety Goggles
200
When you finish using any electrical equipment, always _____
Turn it off
200
Listen carefully and follow the teacher's ______
Directions
200
Draw clothing protection symbol
200
Make a qualitative and quantitative observation about the game board.
Qualitative - made using the five senses
Quantitative - made using numbers
300
After an experiment what should you do with the leftover materials (beakers, chemical waster, thermometer,etc)?
Dispose according to the teacher's directions
300
How many variables should be tested during an investigation?
One independent and all others should be controlled
300
True or false. Horseplaying, practical jokes, and pranks are dangerous and prohibited during labs.
True
300
Identify this symbol, and explain when it would appear.
Disposal Alert. This symbol appears when care must be taken to dispose of materials properly.
300
Identify the following safety symbol and where you would see it.
Biological Hazard. This symbol appears when there is danger involving bacteria, fungi, or protists.
400
List two clothing items that are not allowed during a lab investigation
Open-toed shoes, baggy clothing, long jewelry
400
What should you do if there is an unknown object or liquid in the lab?
Assume it is dangerous
400
Long hair must be
Tied back
400
Identify this symbol, explain when it would appear.
Open Flame Alert. This symbol appears when use of an open flame could cause a fire or an explosion.
400
What is the difference between an observation and inference. Give examples.
An observation is something you have seen, heard or noticed. An inference is a conclusion you make based on evidence.
500
Before handling animals in the classroom, what should you do?
Get the teacher's permission
500
What is the correct way to check the odor of a substance? Be prepared to demonstrate.
Wave/Waft the fumes toward your nose
500
Unused chemicals should never be put back into their original containers, instead they should be...
disposed according to the teachers directions
500
Draw the fume safety symbol
500
Describe the relationship between the independent variable and the dependent variable.
The independent variable is what you are testing (there is only ONE) and the dependent variable will change according to the IV. The dependent variable is what you measure.