Safety
You use this to rinse your eyes when there is debris or chemicals in them
eyewash station
What are the units for volume?
mL and cm3
This word means close you get to a target or true value.
Accuracy
How many sig figs does 705.0 have?
4
The ratio that compares mass to volume is ____.
density
This should always be tied back if it's long.
hair
This measuring instrument is used to find mass (g).
electronic balance
This word means consistency, or consistently hitting any value
precision
When do beginning zeroes count?
Never
What is the density of an object with a mass of 56 g and a volume of 14 cm3?
4.0 g/cm3
Name a specific reason you should wear goggles during a lab.
Anytime there's chemical
Anytime there's glassware
Anytime heat is used
What does a graduated cylinder measure accurately? What are the units?
volume, mL
Which is a more precise reading?
4.3 mL
4.300 mL
4.300 mL
How many sig figs does 4300 have?
2
The amount of space an object occupies is its ____.
volume
Name a time it is okay to eat during a lab.
Never
Four laps around the track is 1600 meters (a mile). What is the distance in centimeters?
160,000 cm
You want to bake a cake for your friend's birthday, but you aren't sure what kind of cake to make (they're not picky). You decide to make 3 cakes. The recipe calls for 160 mL (about 2/3) of milk. You measured 172 mL for each cake. Were you accurate, precise, neither, or both?
Precise.
Round to four (4) sig figs. 13.789
13.79
In a density column, there is dish soap (1.03 g/mL), lamp oil (0.81 g/mL), and karo syrup (1.33 g/mL). What is the layer order from bottom to top?
Karo syrup, dish soap, lamp oil
This is best used to put fires out on a PERSON
Fire Blanket
Convert 2 km to cm
200,000 cm
You have the dimensions of your room. You want to see if a queen size bed will fit along one wall of your room. According to the floorplan, your room is 10 m by 11 m, but you measure the 10 m wall at 9.4 m, 10.0 m, and 9.3 m. Were you accurate, precise, neither, or both?
neither
Answer the math problem with correct sig figs.
2.45 * 3.2
7.8
An object has a mass of 32.0 g and a density of 9.4 g/mL. What is it's volume?
3.4 mL