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College Lab Practices and Tools Questions

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College Lab Practices and Tools
Light microscopes
  1. can generally magnify objects at 10,000 times without blurring.
  2. typically provide higher resolution than an electron microscope.
  3. work by reflecting electrons of the surface of an object being studied.
  4. use light and glass lenses to magnify the image of an object.
  5. are generally not used to view eukaryotic cells.
College Lab Practices and Tools
Scientific observations:
  1. Can be made directly by humans
  2. Can be made by instrumentation
  3. Are limited to available equipment used to record a natural phenomenon
  4. All of the above
College Lab Practices and Tools
Which two items of personal protective equipment would you expect to use in a laboratory?
  1. wellingtons and full hazchem suit
  2. hard hat and leather gloves
  3. lycra shorts and bicycle clips
  4. laboratory coat and safety glasses
  5. multipack adult huggies
College Lab Practices and Tools
Which is the correct unit to report Temperature under the Systeme International?
  1. calorie
  2. Kelvin
  3. degree Celsius
  4. degree Fahrenheit
  5. Joule
College Lab Practices and Tools
Which is the correct unit to report length under the Systeme International?
  1. inch
  2. yard
  3. meter
  4. centimeter
  5. foot
College Lab Practices and Tools
What's an indication that you should stop using a chemical?
  1. You feel dizzy
  2. You feel nauseated
  3. You develop a headache
  4. Any of the above
College Lab Practices and Tools
What type of paper do you use to wipe oil off the immersion lens?
  1. Bibulous
  2. Kimwipe
  3. Lens
  4. Paper towel
College Lab Practices and Tools
What's the best way to dispose of hazardous chemicals used at home?
  1. Put them in a leak-proof container in the trash
  2. Carefully pour them down the drain
  3. Read the labels to see how to dispose of each
  4. Bury them in the yard
College Lab Practices and Tools
Hazardous cleaners are those that:
  1. Irritate the skin
  2. Are harmful if swallowed
  3. Cause dizziness if used in an unventilated area
  4. All of the above
College Lab Practices and Tools
Which characteristic describes the light microscope?
  1. 1-10 um in size
  2. magnification limit of 1000x
  3. 10-100 um in size
  4. Approximately 2-3 nm
  5. can magnify up to 100,000x
College Lab Practices and Tools
The best way to handle a household cleaner is to:
  1. Read the label
  2. Use rubber gloves
  3. Keep a window open
  4. None of the above
College Lab Practices and Tools
What does COSHH stand for?
  1. Chemicals On the Shelf Highly Hazardous
  2. Contains Only Safe Healthy Hydrogen ions
  3. Control of Substances Hazardous to Health
  4. Control Of Substantial Health Hazards
College Lab Practices and Tools
Which of these is the best way to store hazardous chemicals in the home?
  1. In the original container in a safe place
  2. In a replacement container with an airtight lid or cap
  3. In a used, but clean jar
  4. None of the above
College Lab Practices and Tools
Which of the following describes the electron microscope?
  1. 1-10 um in size
  2. magnification limit of 1000x
  3. 10-100 um in size
  4. Approximately 2-3 nm
  5. can magnify up to 100,000x
College Lab Practices and Tools
Which label wording is the safest when looking to buy a household product?
  1. Caution
  2. Warning
  3. Danger
  4. No signal words at all
College Lab Practices and Tools
Which of the following is the easiest justification for the use of animals in research?
  1. Animal research has led to disease discoveries and treatments that would not otherwise be possible
  2. Animal research is conducted so as to minimize suffering
  3. One simply has a conversation with an animal rights activist about the validity of animal research
  4. Animal research is an important part of our pursuit of knowledge
  5. All of the above are correct
College Lab Practices and Tools
Compare and contrast a SEM to a TEM.
College Lab Practices and Tools
The scanning electron microscope (SEM) can be used to view                                       
  1. the internal structure of specimens
  2. the external architecture of specimens
  3. both live and dead specimens
  4. live specimens