Particle Model
Mixing and Dissolving
Viscosity/Solutions
Density/Buoyancy
Pressure and Fluid Systems
100
What is the term for a the smallest "piece" of matter of a substance?
Particle
100
What is a homogeneous mixture?
A mixture that only has 1 identifiable part
ex. Milk
100
What is the term for how STRONG a solution is? (i.e. how much solute is mixed in)
Concentration
100
What is density? what is the formula that measure it?
Mass per unit volume of a substance
D=m/V
100
What is the formula for pressure
P(pascals) = F(N)/A(m2)
200
What is the term for anything that has mass and takes up space
Matter
200
Provide an example of pure substance?
Answers may vary
200
What are two ways to increase concentration?
Increase Solute, Decrease Solvent
200
Why does wood float on water?
Because its density is lower than that of water.
200
Explain why a someone walking in high heels across a field of grass will sink into the dirt while the same person walking in the same field wearing flat shoes does not sink in.
The same amount of force (weight) is applied to the different surface areas of the two shoes
300
What states of matter are fluids?
Gases AND Liquids
300
How do you know a solution is saturated?
No more solute will dissolve
300
What is viscosity? What are the characteristics of a liquid with low viscosity?
Thickness or thinness of a liquid Low Viscosity = High flow rate (liquid moves fast ie. water)
300
Compare Densities of a Solid, Fluid and Gas
Solid - most dense - hard to run through brick wall
Liquid - less dense than solid Running through water, particles move apart
Gas - less dense than liquid or gas - Easier to pass through than liquid and solid
300
Why is it more difficult to compress liquids? hint* think particle model
Liquids have more closely packed particles making them more difficult to compress
400
Draw a diagram that shows the particles in different states of matter
Packed for solids, Flowing for liquids, Bouncing Around for Gasses
400
When making lemonade with sugar powder, which part is the SOLVENT
Water
400
What 3 things impact a liquids viscosity?
Solvent - Adding more solvent
Temperature - heating up
Types of Particles
400
What is difference between buoyancy and gravity?
Buoyancy is the tendency for an object to float, a force that pushes opposite of gravity
400
What are the two methods of increasing pressure?
Increase the amount of force, reduce the area
500
What are 3 of the 5 components of the particle theory
1.All matter is made up of tiny particles 2.All particles in a pure substance are the same 3.Particles have spaces between them 4.Particles are always in motion (moving, rotating, vibrating) 5. Particles in a substance are attracted to each other.
500
Identify this WHMIS symbol and what it means? 
Corrosive Material: It will react with burn through organic matter.
500
Describe 2 jobs where viscosity would be important
Answers may vary - ie, mechanic, candy maker
500
Is Ice more or less dense than water?
Less Dense: Ice will float on water
500
Name a profession that relies on pressure
Answers will vary