Units
Conversion
Safety rules
Lab equipment
Scientific method
100
Name two main groups of measurements
Basic and Derived
100
What does the conversion factor change, the number or the units?
It converts the units.
100
Neither of these should be in your mouth when working in a lab.
Food and gum
100
What is the equipment for measuring the mass of the substance?
Scales
100
What is the first step in the scientific method?
Driving question
200
Which units are called basic?
Length, mass, temperature, time
200
Why the conversion factor does not change the number?
It equals 1.
200
Before leaving the lab you should do both...
Clean up work area and return equipment
200
What would you use to measure the volume of the liquid?
Beaker or graduated cylinder.
200
How do you call the prediction made in scientific method?
Hypothesis
300
Name the derived units.
Volume, density, pH
300
What will be the right conversion factor to convert 74mL to L?
1L/1000mL
300
Lab is not a playground. You do not (3 answers)
Run, horseplay, or play practical jokes
300
The beaker is too hot. Not to burn your fingers, you need to use_____________
Beaker tongs.
300
What is called the variable that you as a scientist can change?
Independent
400
How many milligrams are in 1kg ?
1,000,000mg
400
Calculate: 280g + 5kg
5.280kg or 5,280g
400
Immediately notify the teacher if you accidentally get _____ or have another__________
Cut, injury
400
What color will the litmus paper turn into if placed in the acidic solution?
Red
400
What is call the variable that has to be kept unchanged in order to get the credible results of the experiment?
Control
500
How many cm^3 are in 1L ?
1000 cm^3
500
Calculate: 560cm + 23m
28.60m or 2860cm
500
If you dropped the glassware, never _______
Pick it up with your hands.
500
Name all three pieces of the equipment you will use while working with the Bunsen Burner.
Ringstand, iron ring, wire gauze.
500
List six main steps you use in scientific method.
Driving question, observation, hypothesis, experiment, data collection and analyzing, drawing conclusion.
M
e
n
u