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Ninth Grade (Grade 9) Lab Practices and Tools Questions

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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 task would the laboratory instrument shown be most useful for?
Lab Tool - Electronic Balance
  1. measuring 450 milliliters of water
  2. measuring 15 milliliters of vinegar
  3. weighing 200 grams of baking soda
  4. transferring powered chemicals from a bottle
Grade 9 Lab Practices and Tools
What are the items shown?
Lab Tool - Measuring Cylinders
  1. Test tubes
  2. Wash bottles
  3. Erlenmeyer flasks
  4. Graduated cylinders
Grade 9 Lab Practices and Tools
What are the items shown?
Lab Tool - Test Tubes
  1. Beakers
  2. Test tubes
  3. Florence flasks
  4. Graduated cylinders
Grade 9 Lab Practices and Tools
Which task would the laboratory equipment shown be most useful for?
Lab Tool - Beakers
  1. measuring 450 milliliters of water
  2. measuring 15 milliliters of vinegar
  3. weighing 200 grams of baking soda
  4. transferring powered chemicals from a bottle
Grade 9 Lab Practices and Tools
Which of the following procedures 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
What is the purpose of this safety sign?
Hazard Sign - Eye Face
  1. To make sure students wear a protective apron.
  2. To make sure students put on gloves.
  3. To make sure goggles are worn before starting.
  4. To make sure all directions are read before beginning.
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 items shown?
Lab Tool - Droppers
  1. Beakers
  2. Pipettes
  3. Droppers
  4. Test tubes
Grade 9 Lab Practices and Tools
What are the correct rules for working with chemicals in the class? Select all that are correct.
  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 in your eyes rub them to make them tear
  6. do not touch your eyes, wash them immediately and tell the teacher
Grade 9 Lab Practices and Tools
When gathering glassware and equipment for a lab, what should you should do?
  1. Read all the directions carefully
  2. Look for cracks and chips
  3. Clean dirty glassware
  4. All of the above
Grade 9 Lab Practices and Tools
Which task would the laboratory tool shown be most useful for?
Lab Tool - Mortar And Pestle
  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
Which task would the laboratory equipment shown be most useful for?
Lab Tool - Measuring Cylinders
  1. measuring 450 milliliters of water
  2. measuring 15 milliliters of vinegar
  3. weighing 200 grams of baking soda
  4. transferring powered chemicals from a bottle
Grade 9 Lab Practices and Tools
Which task would the laboratory tool shown be most useful for?
Lab Tool - Micro Spatula
  1. measuring 450 milliliters of water
  2. measuring 15 milliliters of vinegar
  3. weighing 200 grams of baking soda
  4. transferring powered chemicals from a bottle
Grade 9 Lab Practices and Tools
What are the items shown?
Lab Tool - Filter Funnels
  1. Flasks
  2. Funnels
  3. Beakers
  4. Droppers
Grade 9 Lab Practices and Tools
When working with electrical equipment, when should you become concerned or what kind of action should you take? Select all that are correct.
  1. make sure your hands are good and wet
  2. pull the plug, not the cord, to unplug
  3. leave it for the next class to figure out
  4. disconnect any circuit that becomes hot
  5. report frayed or damaged cords or equipment to your teacher
Grade 9 Lab Practices and Tools
What is the most likely outcome if this warning sign is ignored?
Hazard Sign - Radioactive
  1. A person may damage their skin.
  2. A person may damage their eyes.
  3. A person may electrocute themselves.
  4. A person may develop cancer.
Grade 9 Lab Practices and Tools
What type of hazard is indicated by the symbol in the image?
Hazard Sign - Biohazard
  1. a chemical hazard
  2. a biohazard
  3. a radiation hazard
  4. a fire hazard
Grade 9 Lab Practices and Tools
Grade 9 Lab Practices and Tools
For which type of lab activity would this warning sign be most prominent?
Hazard Sign - Sharp Instrument
  1. dissecting a fetal pig
  2. testing the Law of Gravity
  3. experimenting with a new medicine
  4. mixing several different chemicals
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