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WorksheetsShea Intro to Chem
Total questions: 51
Worksheet time: 37mins
When you finish working with chemicals, biological specimens, and other lab substances, always
wipe your hands with a towel.
treat your hands with skin lotion.
wash your hands thoroughly with soap and water.
wipe your hands on your clothes.
It is okay to pick up broken glass with your bare hands as long as the glass is placed in the trash can.
True
False
Do not leave a lit burner unattended.
True
False
The following activity is not permitted in the laboratory:
chewing gum.
eating.
drinking.
all of the above.
Read all procedures thoroughly before performing a laboratory investigation.
True
False
Approved eye protection devices (such as goggles) are worn in the laboratory
only if you do not have corrective glasses.
to avoid eye strain.
to improve vision.
any time chemicals, heat, or glassware are used.
You have been injured in the laboratory (cut, burned, etc.). First you should
visit the school nurse after class.
see a doctor after school.
tell the teacher at once.
apply first aid yourself.
If a PERSON is on fire in the lab....
Get the fire extinguisher!
Get the Fire Blanket!
If a THING is on fire in the lab
Get the Fire Extinguisher!
Get the fire blanket!
When the air hole is closed, what color is the flame?
Blue/Yellow/Orange
Dark and Light Blue
To produce the most heat, you should twist the collar until you see ______
A dark blue cone
An orange cone
A yellow cone
A light blue cone
The gas should be turned on ____________ lighting the match.
Before
After
What type of flame is this called?
Blue flame
luminous flame
nonluminous flame
What is the name of this flame
safety flame
nonluminous flame
luminous flame
If a beaker is hot what should be used to hold it?
test tube holder
metal tongs
forceps
test tube rack
Name this item
test tube clamp
crucible tongs
ring stand
buret clamp
Name this item
Test tube holder
Iron ring
Tongs
utility clamp
Identify the image.
ring stand
lab scoop
wire scoop
crucible
What is this?
Metal Tongs
Forceps
Crucible Tongs
beaker tongs
What is this called?
Crucible
Evaporating Dish
porcelain cup
mixing bowl with lid
All of the math from the labs is also possible quiz questions. Examples: Using known measurements to find the weight of a substance or water and finding percentages. REVIEW YOUR LABS!
I will review my labs.
I will take my chances.
