SNCL Unit 1 Test - Part 1

What does WHMIS stand for?

• World Health Management Information System
• Workplace Hazardous Materials Information System
• Work Health Management International Standards
• Workplace Health Management Information Services

What does HHPS stand for?

• Hazardous Household Product Symbols
• Household Health and Product Standards
• Hazardous Health and Product Symbols
• Household Hazardous Product Safety

What is the independent variable in an experiment?

• The variable that is measured
• The variable that is changed
• The variable that stays the same
• The result of the experiment

What is the dependent variable in an experiment?

• The variable the scientist controls
• The variable that stays the same
• The variable that is being measured
• Any variable in the experiment

What should you do immediately if you spill a chemical in the lab?

• Clean it up yourself quietly
• Leave it to dry
• Notify your teacher immediately
• Cover it with paper towels and walk away

A student needs to measure exactly 27 mL of water for an experiment. Which piece of laboratory equipment is the most appropriate tool for this task?

• Graduated cylinder
• Beaker
• Eye dropper
• Test tube

Which step comes first in the scientific method?

• Experiment
• Question/Problem
• Analysis
• Conclusion

How is broken glass disposed of in the laboratory?

• Throw it in the regular trash
• Place it in the designated glass disposal container
• It is glued back together
• Leave it on the counter for the custodians

A student is investigating if the type of liquid affects plant growth. What is the dependent variable in this experiment?

• The type of plant
• The growth of the plant
• The type of liquid (juice or water)
• The amount of liquid used

Students measure the volume of an irregularly shaped object by placing it in a graduated cylinder with 40 mL of water. If the new water level is 52 mL, what is the volume of the object?

• 40mL
• 12mL
• 52mL
• 92mL