Unit A - Mix and Flow of Matter, Sections 2 & 3

What is an example of a pure substance?

• Water

• Coffee

• Milk

• Juice

What is an example of a heterogeneous mixture?

• Water

• Coffee

• Milk

• Air

What is a Colloid?

• A cloudy heterogeneous mixture, like milk

• A cloudy homogenous mixture, like milk

• A separated mixture, like oil in water

• A separated mixture, like dust in air

What is a Suspension?

• A separated mixture, like sand in water

• A homogenous mixture, like sugar water

• A cloudy mixture, like milk

• A pure substance like iron

What is a homogenous mixture?

• A mixture that looks like it's made of one thing.

• A mixture that looks like it's made of multiple things

What is a solvent?

• The medium that causes the solute to dissolve

• A substance that dissolves in solute

What is an example of a solute?

• Sand, when mixed with rocks

• Oil, when mixed with sand

• Salt, when mixed in water

• Water, when mixed with oil

What unit do we use for concentration?

• F/A

  Force per area

• g/mL

  Grams per milliliter

• mL/g

  Milliliters per gram

• m/s

  meters per second

Which is an example of a saturated pancake?

• Where the pancake can absorb more syrup

• Where the pancake cannot absorb more syrup

Which is an example of an unsaturated sponge?

• The sponge cannot absorb more water

• The sponge can absorb more water