Science 8: Mix and Flow of Matter MEGA QUIZ

Matter is made up of ____

What are molecules made up of?

Check all states of matter:

Fill in the blanks(all of these are from our notes): - Solid: Had definite [blank_start]shape[blank_end] and [blank_start]volume[blank_end] - Liquid: Has a definite [blank_start]volume[blank_end] but no [blank_start]shape[blank_end] - Gas: Has neither a definite [blank_start]volume[blank_end] nor [blank_start]shape[blank_end]

Gases and Solids can flow

Check all SIX Particle Model of Matter principles:

What are the terms for changing between a gas and a solid?

What are the terms for changing between a solid and a liquid?

What are the terms for changing between a liquid and a gas?

All substances have the same melting and boiling points.

When does a change of state occur?

Check every quality of a homogeneous mixture:

Check every quality of a heterogeneous mixture:

Fill in the Blanks for Inbetween Mixtures(these are from notes for help): - [blank_start]Suspension[blank_end]: a [blank_start]heterogeneous[blank_end] mixture in which the particles [blank_start]slowly[blank_end] settle after mixing. Eg. Salad dressing, Paint - [blank_start]Colloid[blank_end]: a heterogeneous mixture in which particles do not [blank_start]settle[blank_end]. Eg. Milk, Gelatin - [blank_start]Emulsion[blank_end]: particles of a [blank_start]colloid[blank_end] disperse even longer. Eg. Mayonnaise, Soapy dishwater

How does soap help us clean?

Please memorize these symbols. They will be on the test.

Check SIX ways you can separate a mixture:

What is a solute?

What is a solvent?

What does "soluble" mean?

What does "rate of dissolving" mean?

What does "solubility" mean?

What is a "saturated solution"?

What is an "unsaturated solution"?

What is a "supersaturated solution"?

What does "insoluble" mean?

Please identify the solvents and solutes of these substances: Ink: Solute - Colored [blank_start]dye[blank_end] Solvent - [blank_start]water[blank_end] Saltwater: Solute - [blank_start]salt[blank_end] Solvent - [blank_start]water[blank_end] Milkshake: Solute - [blank_start]ice[blank_end] [blank_start]cream[blank_end] Solvent - [blank_start]milk[blank_end]

What does agitation do?

Fill in the Blanks for Viscosity(notes will help): Viscosity is the property that describes a fluid's [blank_start]thickness[blank_end] or [blank_start]thinness[blank_end]. Thicker liquids are [blank_start]more[blank_end] viscous or have a higher [blank_start]viscosity[blank_end]. [blank_start]Flowrate[blank_end] is used to determine viscosity. This is a measure of the [blank_start]time[blank_end] it takes a liquid to travel a certain [blank_start]distance[blank_end]. Viscosity relates to the [blank_start]Particle[blank_end] [blank_start]Model[blank_end] of [blank_start]Matter[blank_end]. Viscosity is thought of as [blank_start]Resistance[blank_end] to [blank_start]flow[blank_end]. - There is [blank_start]internal[blank_end] [blank_start]friction[blank_end] between [blank_start]particles[blank_end] - [blank_start]Thicker[blank_end] liquids have more attraction between the [blank_start]particles[blank_end], and therefore, more [blank_start]friction[blank_end] - [blank_start]Heating[blank_end] a substance causes the particles to spread [blank_start]out[blank_end], creating [blank_start]less[blank_end] internal friction For [blank_start]gases[blank_end], the opposite is true. As they are [blank_start]heated[blank_end], they become more [blank_start]viscous[blank_end].

Fill in the Blanks(notes do not apply, but I have said this many times): The more [blank_start]viscous[blank_end] a substance is, the [blank_start]flow[blank_end] [blank_start]rate[blank_end] would be less.

What is density?

What units do you use to measure capacity?

What units do you use to measure volume?

What determines how many particles can fit in a certain space?

[blank_start]Solids[blank_end] are generally the most dense. Next is [blank_start]liquids[blank_end] and then [blank_start]gases[blank_end].

100g of nickel occupies 11.2 cc. What is the density of nickel?

[blank_start]Bouyancy[blank_end] is the tendancy for materials to rise or float in a [blank_start]fluid[blank_end]. It is also referred to as "[blank_start]Bouyant[blank_end] [blank_start]Force[blank_end]", which is the [blank_start]upward[blank_end] force on objects submerged in fluids. [blank_start]Floating[blank_end] occurs when an object doesn't fall or sink in a fluid, but remains [blank_start]suspended[blank_end].

Check FOUR things that cause floating:

Fill in the Blanks for Archimedes Principle: The [blank_start]Bouyant[blank_end] Force acting on an object [blank_start]equals[blank_end] the [blank_start]weight[blank_end](force of gravity) of the [blank_start]fluid[blank_end] displaced by the [blank_start]object[blank_end].

If the Bouyant Force is the same as the gravitational force, the object will neither sink nor float.

Fill in the Blanks for Pressure(help in notes again): Refers to applying a [blank_start]force[blank_end] to a given amount of [blank_start]area[blank_end]. Can be calculated by [blank_start]dividing[blank_end] [blank_start]force[blank_end] by [blank_start]area[blank_end].

What units do you use to measure force?

What units do you use to measure area?

What is the unit used for Pressure?

Pascals are a metric unit, so they cannot use prefixes such as kilo and mili

Fill in the Blanks for Compression of Gases(notes will help): [blank_start]Gases[blank_end] are compressible because their [blank_start]particles[blank_end] are spread apart, and can be [blank_start]squeezed[blank_end] together. The particles of [blank_start]solids[blank_end] or [blank_start]liquids[blank_end] are packed as [blank_start]tightly[blank_end] as possible, therefore, solids and liquids are [blank_start]incompressible[blank_end].

Check THREE things that use HYDRAULICS:

Name FIVE things that use PNEUMATICS:

On a jello package, it says to boil the water. Why?

Small bits of steel and gold are mixed into a pile. How would you separate them?