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Drummond BGE Science > S1 - Model of Matter (complete) > Flashcards

S1 - Model of Matter (complete) Flashcards

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1
Q

Matter

A

Stuff everything is made of.

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2
Q

Particle

A

A very small piece of matter.

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3
Q

Solid

A

A state of matter with tightly packed particles.

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4
Q

Liquid

A

A state of matter with particles that can slide over each other.

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5
Q

Gas

A

A state of matter with widely spaced, fast moving particles.

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6
Q

Solid, liquid or gas?

A

Liquid

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7
Q

Solid, liquid or gas?

A

Gas

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8
Q

Solid, liquid or gas?

A

Solid

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9
Q

Which will take the shape of the container they are in:

solid, liquid, gas?

A

Liquid and gas

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10
Q

Which can be compressed:

solid, liquid, gas?

A

Gas

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11
Q

Are particles in solids completely still?

A

No, they vibrate.

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12
Q

How can we show these particles are vibrating?

A

Add curved lines

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13
Q

Why are gases easy to compress?

A

Large spaces between particles (so we can push them closer).

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14
Q

What happens to solids when you heat them?

A

They expand (get bigger).

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15
Q

A metal bar gets longer after heating. Why?

A

Particles vibrate more, so spaces between particles get bigger.

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16
Q

Fill in the blank in the diagram

A
17
Q

Fill in the blank in the diagram

A
18
Q

Fill in the blank in the diagram

A
19
Q

Fill in the blank in the diagram

A
20
Q

Melting

A

Solid turning into a liquid.

21
Q

Boiling

A

Liquid turning into a gas.

22
Q

Freezing

A

Liquid turning into a solid.

23
Q

Condensing

A

Gas turning into a liquid.

24
Q

Melting point

A

Temperature at which a solid turns into a liquid.

(0 ºC for water.)

25
Q

Boiling point

A

Temperature at which a liquid turns into a gas.

(100 ºC for water.)

26
Q

Density

A

This describes how tightly particles are packed.

27
Q

The formula to calculate density is …

A

Density = Mass ÷ Volume

28
Q

Units for density

A

g/cm3

(grams per cubic centimetre)

29
Q

How can you tell if something will float in a liquid?

A

If density is lower than the liquid, it will float.

30
Q

What is this process called?

A

Diffusion

31
Q

Diffusion

A

Particles spreading out to mix with air or water.

32
Q

Concentration

A

This describes how many particles are dissolved in a liquid.

33
Q

Soluble

A

Something that dissolves.

(E.g. sugar is soluble in water.)

34
Q

Insoluble

A

Something that does not dissolve.

(E.g. oil is insoluble in water.)

35
Q

Solvent

A

A liquid that something can be dissolved in.

(Like water.)

36
Q

Solute

A

The substance that is dissolved in a solvent.

(Sounds similar to ‘solid’.)

37
Q

Solution

A

A solute dissolved in a solvent.

38
Q

Saturated

A

A solution in which no more substance can be dissolved.

Drummond BGE Science (12 decks)

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