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Ninth Grade (Grade 9) Lab Practices and Tools Questions

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Grade 9 Lab Practices and Tools
In a microscope, the ocular (eyepiece) is used to
  1. look through.
  2. direct light to the slide.
  3. adjust the focus.
  4. hold the slide.
Grade 9 Lab Practices and Tools
When wearing eye protection as instructed by your teacher, when can you take it off?
  1. once the Bunsen burner is turned off.
  2. only when ALL practical work, including clearing away, is finished.
  3. whenever you need to see better
Grade 9 Lab Practices and Tools
What are the items shown?
Lab Tool - Beakers
  1. beakers
  2. test tubes
  3. reagent bottles
  4. graduated cylinders
Grade 9 Lab Practices and Tools
Which procedure should be followed if this symbol is seen in a science lab?
Hazard Sign - Electrical
  1. Your hands should be dry before touching the equipment.
  2. You need to have safety goggles on at all times.
  3. You should be wearing a protective apron before starting.
  4. You must refrain from eating in the laboratory.
Grade 9 Lab Practices and Tools
Which task would the laboratory equipment shown be most useful for?
Lab Tool - Stand And Clamp
  1. storing chemicals
  2. crushing solid chemicals into powder
  3. holding glassware over a Bunsen burner
  4. transferring powered chemicals from a bottle
Grade 9 Lab Practices and Tools
What are the rules for working with chemicals in the class? (Select all that apply.)
  1. Dispose of all extra chemicals down the sink at the end of class.
  2. Know the safety precautions and hazards for all chemicals you are using before you start your lab.
  3. If you come in contact with a chemical substance, jump up and down and shake to get it off you.
  4. Wash the affected area immediately and thoroughly with water.
  5. If you get any chemicals in your eyes, rub them to make them tear.
  6. Do not touch your eyes, but wash them immediately and tell the teacher.
Grade 9 Lab Practices and Tools
Before starting any lab, you should first
  1. locate safety equipment.
  2. smell all the lab materials.
  3. write the lab report conclusion.
  4. get a calculator.
Grade 9 Lab Practices and Tools
Grade 9 Lab Practices and Tools
What must you do BEFORE using a Bunsen burner?
  1. Tie back long hair, tuck in ties, and put safety goggles on.
  2. Ensure all books and flammable items are cleared from your bench.
  3. Make sure your hands are clean.
Grade 9 Lab Practices and Tools
Grade 9 Lab Practices and Tools
When gathering glassware and equipment for a lab, you should
  1. read all the directions carefully.
  2. look for cracks and chips.
  3. clean the dirty glassware.
  4. all of the above
Grade 9 Lab Practices and Tools
Which type of microscope uses light and more than one lens to view an object?
  1. compound light microscope
  2. scanning electron microscope
  3. simple light microscope
  4. transmission electron microscope
Grade 9 Lab Practices and Tools
When entering the lab, what should you do with the lab equipment?
  1. whatever you want
  2. carefully adjust the materials so you may work better
  3. read the directions carefully and get to work
  4. sit in your seats and leave the equipment alone
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