Science 14 Review

What does WHMIS stand for?

• Workplace Hazardous Materials Information Systems

• Work Hazards Must Immediately Stop

• Workplace Hazards Materials In Safety

• Worst Human Masterpieces In Sight

Materials Safety Data Sheets (MSDS):

• tell you the prices of products

• help you understand safe work practices

• warn about potential dangers

• give important details about products

A student is performing an experiment to test which powders will dissolve in water. Which of the following is a controlled variable?

• the dissolvability of the powders

• the type of powder being tested

• the store where the powder was purchased

• the amount of each powder being tested

All of the following are phases of matter EXCEPT:

• Putty

• Solid

• Liquid

• Gas

• Plasma

this state of matter has a fixed shape and volume with particles closely packed together with little movement

• Solid

• Liquid

• Gas

• Plasma

Which of the following is NOT a way that matter changes phase?

• Evaporation

• Mixing

• Sublimation

• Condensation

Increasing the heat of a substance will cause the movement of its particles to:

• slow down

• stop

• speed up

• stay the same

What is removed from gaseous water to cause it to change to a liquid?

• gas

• nothing is removed

• volume

• heat

Which one of the following is NOT a characteristic of a chemical change?

• a new substance is formed

• bubbles/fizz are produced

• is easily reversed

• light is produced

The melting point of water (ice) is:

• 32⁰C

• 100⁰C

• 0⁰C

• 60⁰C