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Science 8 > Mix & Flow Final > Flashcards

Mix & Flow Final Flashcards

1
Q

What does WHIMIS stand for?

A

Workplace Hazardous Materials Information System

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2
Q

What does a yellow triangle mean?

A

Caution

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3
Q

What does a orange diamond mean?

A

Warning

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4
Q

What does a red octagon mean?

A

Danger

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5
Q

Fluid

A

Anything that has bodices shape and can flow

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6
Q

Slurry

A

A mixture of water and a substance to move the substance to a different place

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7
Q

Pure Substance

A

A substance made up of only one type of matter.

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8
Q

Mixture

A

A combination of different substances

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9
Q

Mechanical Mixture

A

A mixture where you can see all the different substances.

Also called a heterogenous mixture

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10
Q

Solution

A

A mixture that looks like all one substance.

Also called a homogenous mixture.

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11
Q

Suspensions

A

A cloudy mixture in which droplets of one substance are held within another substance. Usually, if left undisturbed, the mixture will eventually separate

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12
Q

Colloid

A

A cloudy mixture in which the droplets are too small to separate out.

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13
Q

Solvent

A

A substance that dissolves a a solvent. (i.e., water)

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14
Q

Solute

A

A substance that is dissolved into the solvent. (i.e., salt)

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15
Q

Concentration

A

How much solute is dissolved into the solvent.

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16
Q

Saturated Solution

A

A solution in which no more solute can be dissolved into

17
Q

Solubility

A

The maximum amount of solute you can dissolve into a certain amount of solvent.

18
Q

Saturation Point

A

A solution reaches this point when no more solute can be dissolved into the solvent.

19
Q

What are the key points in the particle model of matter?

A

All matter is made up of tiny particles.

The tiny particles are always moving

The particles may be attracted to each other

The particles have space between them.

20
Q

What factors affect how fast solute dissolves?

A

Temperature
Size of Pieces
Stirring

21
Q

Viscosity

A

How thick or thin the substance is.

If it is thicker it is more viscous

22
Q

Density

A

The amount of matter in a given volume.

23
Q

Which is less dense, warm water or cold water?

A

Warm water

24
Q

Buoyant Force

A

A force that pushes upward against an object to help it float in water.

25
Q

Buoyancy

A

The tendency of an object to float when placed in a fluid.

26
Q

Compressibility

A

Extent to which a substance can be compressed.

27
Q

Incompressible

A

When a substance cannot be compressed easily

28
Q

Pressure

A

The amount of force applied to a given area

29
Q

Which states of matter are incompressible

A

Solid and Liquid

30
Q

What is the difference between a hydraulic system and a pneumatic system?

A

Hydraulic uses liquids

Pneumatic uses air

31
Q

How does detergent remove stains from clothes?

A

They use a cleaning agent called a surfactant. The surfactants attach themselves to dirt and oil particles, separating them from the fabric.

32
Q

Why does the sickness “the bends” occur?

A

This sickness is caused when the diver ascends to quickly, so the pressure decreases rapidly. The sudden change in pressure causes nitrogen gas to bubble out of the blood and tissue, causing extreme pain.

33
Q

What is a treatment for the bends?

A

They put the sick person in a hyperbaric chamber. In the chamber they increase the pressure, allowing the nitrogen bubbles to release out of the body.

34
Q

How does a diaphragm pump work?

A

When the piston at the top of the device pulls up, fluids enter the device. When the piston pushes down, the fluid is released out.

35
Q

Explain how a bicycle pump works

A

When you pull up the piston at the top the cylinder, air fills the device. When you push down, it compresses the air, which pushes it down toward the opening at the bottom.

36
Q

What is the difference between a bathyscaph and a submarine?

A

In a bathyscaph, you sit in a sphere on the bottom of the ship. In a submarine, you are seated in the body.

Science 8 (16 decks)

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