Lab Safety
Lab Equipment/Measurements
Sig Figs/Unit Conversions
Experimental Design
Density
100
When eating is allowed in the lab
never
100
A piece of lab equipment used to widen the opening of a narrow piece of glassware, making pouring easier
funnel
100
When trailing zeros are significant
When there's a decimal point anywhere in the number
100
definition of accuracy
how close a measurement is to a known/accepted value
100
Water displacement can be used to measure this
Volume
200
The technique you should use for smelling a chemical in chemistry
wafting
200
The piece of glassware we will most often use to measure volume of liquids
graduated cylinder
200
The complete story of a royal man's tragic fate, used to help remember prefixes for unit conversions
MEGA King Henry died by drinking chocolate milk many nights
200
Definition of precision
How close measurements are to each other. Repeatability
200
The density of water
1 g/mL
300
Meaning of this chemical symbol
Biohazard
300
The rule for how many digits to include in a measurement
Enough so that the last digit is an estimate (one digit point beyond the smallest hashmark)
300
Number of sig figs in the number: 2 snails
infinity
300
The type of variable that is plotted on the x-axis
independent
300
An object has a density of 1.25 g/mL. This will happen when it is placed in water
sink
400
The highest number you'd see on an NFPA diamond label
4
400
Name of the curved line formed by liquids in a graduated cylinder
meniscus
400
Number of sig figs in the number: 00.200200g
6
400
The type of variable that the scientist measures to understand the effect of the experiment
dependent
400
The formula for density
d=m/V
500
The yellow diamond on an NFPA diamond label means THIS
reactivity
500
If a ruler has hashmarks at every 10th of a centimeter, the number of decimal places your measurement (in cm) needs to have
2 (to the hundredths place)
500
The number of liters in a hectoliter
100
500
The difference between a control group and a controlled variable
A control group does not receive the independent variable treatment and is used for comparison to the experimental group. A controlled variable is any variable that is kept the same throughout an experiment
500
He used density to help a king sniff out a scammy crown
Archimedes