Lab Equipment ID
Using Lab Equipment
Lab Safety Scenarios
SI Base Units
Accurate vs. Precise
100
Laboratory glassware used for holding and mixing liquids.
What is a beaker?
100
Could be used to hold 50 mL of a chemical.
What is a beaker? (Would also accept graduated cylinder or flask)
100
You are doing a lab on chemical reactions at different temperatures. The substances are added to beakers then either heated or left at room temperature. You need to pick up a beaker but aren't sure if it has been heated yet or not.
What is using tongs to pick up any beakers, since you can't tell whether they are hot or cold?
100
SI base unit for length - name and abbreviation
What are meters (m)?
100
Definition of accurate measurements
What is the degree to which the data agrees with the true value?
200
Laboratory glassware (can also be plastic) used for measuring precise volumes of liquids.
What is a graduated cylinder?
200
Could be used to find the mass of a substance.
What is a scale?
200
You are cleaning up after a lab. The instructions don't say anything about how to dispose of the chemicals you used.
What is ask your teacher and follow the correct disposal methods?
200
SI base unit for volume - name and abbreviation
What are liters (L)
200
Definition of precise measurements
What is the degree to which measurements agree with one another?
300
Laboratory equipment used to measure the temperature of a substance.
What is a thermometer?
300
Could be used to measure exactly 20.5 mL of water.
What is a graduated cylinder?
300
You are helping Mrs. Weiss set up for a lab and notice that the beaker you just pulled out of the cabinet is cracked.
What is let the teacher know and do not set out/use the glassware?
300
SI base unit for mass - name and abbreviation
What are kilograms (kg)
300
A student knows 90% of the material for a class, but they score a 70% on the test.
Is this an accurate or precise measurement, or neither?
What is neither?
400
Laboratory equipment used to transfer precise amounts of a liquid to another container.
What is a pipette?
400
Could be used to heat a beaker full of a substance when a gas line is not available (such as in our science classroom!)
What is a hot plate?
400
You get to class and see that the room is set up for a lab, with materials laid out on the lab tables. The instructions are laid out on the lab tables too. Mrs. Weiss must be making copies though, because she is not in the room when you get to class. The lab looks fun, and you are tempted to get started right away.
What is wait until the teacher is present and explains the procedures?
400
SI base unit for time - name and abbreviation
What are seconds (s)?
400
You take your cat to the vet. At home he weighs 12 lbs. At the vet, he doesn't want to sit still so they measure that he weighs 11,10.5, and 11.5 lbs.
Is the 12 lbs an accurate or precise measurement, or neither?
What is a precise measurement?
500
Used for holding multiple test tubes.
What is a test tube rack?
500
Can be used to transfer a hot beaker without touching the glass.
Tongs/Beaker tongs
500
You are working with your lab partner on a chemistry lab. The instructions are to mix two chemicals together in a beaker. When you mix the two chemicals together, they start to bubble. You lean over the beaker to get a better look at what's happening inside. Your favorite necklace that you wore today hangs over the beaker.
What is do not wear loose jewelry or clothing in the lab?
500
SI base unit for temperature - name and abbreviation
What is Kelvin (K)?
500
You take your driver's license test. You studied really hard and know 99% of the material on the test. You score a 97% on the written exam!
Is the 97% an accurate or precise measurement of your knowledge, or neither?
What is an accurate measurement?