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Seventh Grade (Grade 7) Lab Practices and Tools Questions

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Grade 7 Lab Practices and Tools
Scientists all over the world use the metric system as the standard system of measurement (SI). Why is it important for scientists to use a common system of measurement?
  1. It allows scientists to repeat experiments, compare data, and communicate results.
  2. It helps scientists create data charts and graphs from observations.
  3. It encourages scientists to use lab safety while doing scientific investigations.
  4. None of the above
Grade 7 Lab Practices and Tools
Which tool would give the most precise measurement of 15 milliliters of water?
  1. 50-ml beaker
  2. 50-ml graduated cylinder
  3. 500-ml beaker
  4. 500-ml graduated cylinder
Grade 7 Lab Practices and Tools
When should you wear safety goggles?
  1. at all times in the lab
  2. when heating items or working with chemicals
  3. only when the teacher tells you to
  4. only if there has been a chemical spill that might affect your eyes
Grade 7 Lab Practices and Tools
The most important thing in a laboratory experiment is                          .
  1. getting the lab done
  2. not spilling anything
  3. getting the right answers
  4. following directions
Grade 7 Lab Practices and Tools
Safety rules in the lab include
  1. wearing close-toed shoes.
  2. wearing no ties or spray jackets.
  3. tying hair back and out of the face.
  4. all of the above
Grade 7 Lab Practices and Tools
The proper method for carrying a microscope is to place
  1. one hand on the neck and one on the base.
  2. both hands on the base.
  3. both hands on the arm.
  4. only one hand to prevent fingerprints and smudges.
Grade 7 Lab Practices and Tools
Which is not a science safety rule?
  1. Always read the directions prior to beginning an experiment.
  2. Tie back long hair if working over an open flame.
  3. You may eat and drink in the lab if you wear gloves.
  4. Tell your teacher if you are injured in any way.
Grade 7 Lab Practices and Tools
What are the correct units for measuring mass?
  1. ounce, pound
  2. milliliter, liter, kiloliter
  3. milligram, gram, kilogram
  4. second, minute, hour
Grade 7 Lab Practices and Tools
                is the distance from one point to another.
  1. Length
  2. Mass
  3. Volume
  4. Density
Grade 7 Lab Practices and Tools
If you think there is something wrong with a piece of equipment, stop, turn it off, and tell your
  1. lab partner.
  2. class leader.
  3. teacher.
  4. custodian.
Grade 7 Lab Practices and Tools
Select the appropriate tool to measure length.
  1. thermometer
  2. graduated cylinder
  3. triple beam balance
  4. ruler
Grade 7 Lab Practices and Tools
All floors and aisles should be kept clear of
  1. students.
  2. lab equipment.
  3. chemicals.
  4. all of the above
Grade 7 Lab Practices and Tools
What are common units for measuring length?
  1. milligram, gram, centigram
  2. millimeter, centimeter, meter
  3. milliliter, liter, kiloliter
  4. cubic centimeter, cubic meter
Grade 7 Lab Practices and Tools
Goggles help
  1. protect the eyes.
  2. scientists see better.
  3. scientists look stylish.
  4. see underwater.
Grade 7 Lab Practices and Tools
What is the number-one priority in the science classroom?
  1. getting the correct answer
  2. having fun
  3. safety
  4. finishing quickly
Grade 7 Lab Practices and Tools
                is the change in apparent size produced by a microscope.
  1. Objective
  2. Eyepiece
  3. Magnification
  4. Membrane
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