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8th grade > Properties of matter > Flashcards

Properties of matter Flashcards

1
Q

Chemistry

A

the study of matter

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2
Q

Matter

A

Anything that takes up space and has mass

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3
Q

What are some things that are not matter

A

Sunlight, electricity, heat

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4
Q

What is a physical property

A

Property that can be observed without changing the identity of the substance.

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5
Q

Viscosity

A

Substance resistance to flow.

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6
Q

conductivity

A

Materials ability to allow heat to flow

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7
Q

malleability

A

a substance that can be hammered into a thin sheet

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8
Q

What phases change at melting point

A

solid to liquid

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9
Q

What phases change at boiling point

A

liquid to gas

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10
Q

what is density

A

ratio of mass to volume

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11
Q

what is Physical change

A

a Change in appearance without changing the composition of material.

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12
Q

What are some examples of physical change

A

Reversible/irreversible
Changes in size or shape
dissolves
changes phase

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13
Q

Chemical properties

A

Ability to produce a change in the composition of matter.

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14
Q

What are some examples of chemical properties.

A

Flammability, reactivity(rusting/corrosion), Precipitate, (Forms a solid)

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15
Q

chemical change

A

occurs when a substance reacts and forms one or more new substances.

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16
Q

If something dissolves is it a Physical property or a chemical property

A

Physical

17
Q

If something reacts is it a Physical property or a chemical property

A

chemical

18
Q

If something combusts is it a Physical property or a chemical property

A

chemical

19
Q

If something tarnishes is it a Physical change or a chemical change

A

chemical

20
Q

If something rusts is it a Physical change or a chemical change

A

chemical

21
Q

If something evaporates is it a Physical change or a chemical change

A

Physical

22
Q

If something cooks is it a Physical change or a chemical change

A

chemical

23
Q

If something grows is it a Physical change or a chemical change

A

chemical

24
Q

A spontaneous reaction occurs…

A

without any outside influence

25
Q

if variable x is directly proportional to variable y it means…

A

as y increases x increases

26
Q

What is an aqueous solution

A

a solution that dissolves in water

27
Q

Chemical change release

A

light/heat

28
Q

chemical change absorb

A

photosynthesis/cooking

29
Q

exothermic

A

out heat (hot hands)

30
Q

endothermic

A

in heat (cold pack)

8th grade (16 decks)

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