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WorksheetsUnit 1 Quiz Review - Measurement & Density
Total questions: 20
Worksheet time: 40mins
Read all ________________________ before beginning an experiment and ask questions if you are unsure of anything.
symbols
posters
instructions
comics
Always wear __________________ when working with chemicals, burners, or any materials that may hurt your eyes.
apron
jewelry
goggles
long sleeves
How close a measurement is to the accepted value is called..
Accuracy
Precision
Significant
Estimate
What are observations made using our five senses called?
qualitative data
quantitative data
The rose has three leaves.
observation
inference
What is the name of this piece of lab equipment?
test tube
graduated cylinder
pipet
buret
Where do you place a chemical with a strong odor?
in a beaker
outside
a fume hood
in the classroom
What is the name of the lab equipment below?
a volumetric flask
a buret
an Erlenmeyer flask
a beaker
You take the mass of a solid sample using an electronic balance. Which answer below would be correct?
50 g
50 mL
50 mm
50 lbs
How could you find the volume of an irregularly shaped object, such as the one in the picture?
subtract the final volume - the initial volume
add the final volume + the initial volume
multiple the length x width x height of the object
take the mass and divide by volume
Bobby scored 80%, 78%, and 82% on 3 tests. What is his average score?
78%
79%
80%
81%
(True or False) 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
