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Science > Matter And Mixtures > Flashcards

Matter And Mixtures Flashcards

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1
Q

Matter

A

Anything that occupies space and has mass.

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2
Q

Mass

A

The amount of matter in an object

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3
Q

3 states of matter

A

Solid,liquid and gases

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4
Q

Properties of solids

A

Solids have a definite shape
Solids have a definite volume
Solids cannot be compressed
Solids cannot flow

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5
Q

Properties of liquids

A

Liquids have no definite shape
Liquids have a definite volume
Liquids cannot be compressed
Liquids can flow

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6
Q

Properties of Gases

A

They have no definite volume
Gases have no definite shape
Gases can be compressed
Gases can flow

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7
Q

Heat energy

A

In order for a substance to change state

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8
Q

Latent heat

A

As a substance changes state it uses

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9
Q

Melting point

A

When both the solid and liquid state exist together(changing from from a solid to a liquid)

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10
Q

The Boiling Point

A

Of A liquid is when evaporation begins to happen throughout the liquid (changing from a liquid to a gas)

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11
Q

Condensation

A

Is the changing of a gas to a liquid

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12
Q

Diffusion

A

The movement of particles from an area

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13
Q

Plasma

A

The fourth state of matter, like gas but can conduct electricity.

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14
Q

Physical change

A

No change in particles, just the particle arrangement and energy

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15
Q

Chemical change

A

A reaction takes place and a new substance is formed

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16
Q

During with chemical reaction

A

The atoms rearrange to form a new substance

17
Q

Law of conservation of mass

A

Matter can be changed from one form to another

18
Q

Mixture

A

A mixture of two or more substances mingled together but not chemically eg sand an water

19
Q

There are our methods of separating mixtures

A

Filtration
Evaporation
Distillation
Chromatography

20
Q

Filtration

A

Used to separate small insoluble solids(don’t dissolve in liquid)
From a liquid by using filter paper and a funnel to trap the solids eg sand and water

21
Q

Evaporation

A

Used to separate soluble solids (dissolve in liquids) from a solution by evaporating off the liquid to leave the solids eg salt water

22
Q

Disitillation

A

Used to separate two liquids with different boiling points such as alcohol (boils at 78) and water (boils at 100). Also used to separate a soluble solid from a liquid (e.g. seawater) to give a pure sample of each.

23
Q

Chromatography

A

Used to separate a mixture of dissolved substances in a solution e.g. the different colours in a black marker

24
Q

Mixture

A

consists of two or more substances mingled together but not chemically combined

25
Q

Insoluble

A

Does not dissolve in a liquid

26
Q

Soluble

A

Dissolves in a liquid

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