States of Matter
Which state of matter has a definite shape and volume?
Solid
All matter is made of…?
Particles
Water (H₂O) is an example of a…?
Compound
What does the yellow triangle WHMIS symbol indicate?
Caution
In sugar water, what is the substance being dissolved called?
Solute
Name the process when a liquid changes to a gas.
evaporation
Particles gain energy when ___ and lose energy when ___?
Heated/Cooled
Salt water is a mixture where the different substances are evenly mixed. What type of mixture is it?
Homogeneous or Solution
Name one rule for lab safety before starting an experiment.
MANY
The substance doing the dissolving in sugar water is…
Solvent
The process where a solid changes directly to a gas is called…
Sublimation
True or False: Particles are always moving.
True
Milk is an example of what type of mixture where particles do not settle and cannot be filtered?
Colloid
A red octagon WHMIS symbol indicates which hazard level?
Danger
A solution that contains more dissolved solute than normal and is unstable is called…
Supersaturated
A gas losing energy and becoming a solid is called…
Deposition
How do particles in solids act…
tightly packed and vibrate
Sand and water form a mixture that can be separated by hand or filter. What type of mixture is it?
Mechanical Mixture or Suspension
Name one WHMIS symbol
MANY
Name one factor that affects the rate of dissolving.
Temperature, agitation, surface area, type of solvent, concentration
What is the fourth state of matter that is made of charged particles and can glow?
Plasma
Describe how particle movement explains why honey flows faster when heated.
particles move faster and slide past each other more easily when heated making the honey flow faster
Classify sugar (C₁₂H₂₂O₁₁).
Compound
What shape is the WHMIS symbol for a medium hazard?
Sqaure
Flow rate is distance ÷ time. If maple syrup flows 20 cm in 5 seconds, what is the flow rate?
4cm/s