Metals and non-metals Flashcards

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1
Q

Describe the solid state.

A

A solid has a fixed shape that cannot change easily except by force.

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2
Q

Describe the liquid state.

A

A liquid doesn’t have a fixed shape but takes on the shape of the container. Liquids can flow.

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3
Q

Describe the gaseous state.

A

A gas moves around freely and fills the space or closed container.

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4
Q

What gases is air made up of?

A

Mostly nitrogen and oxygen gas.

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5
Q

Define ‘matter’

A

Matter is everything that takes up space and has mass.

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6
Q

Define ‘mass’

A

Mass is the amount of material in an object.

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7
Q

Describe the change during melting

A

From solid to liquid.

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8
Q

Describe the change during evaporation

A

From liquid to gas.

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9
Q

Describe the change during condensation.

A

From gas to liquid.

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10
Q

Describe the change during solidifying

A

From liquid to solid

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11
Q

Define DUCTILE

A

Can be stretched into long wires

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12
Q

Define STRONG

A

Can withstand a large force

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13
Q

Define ELASTIC

A

Can be stretched and compressed and will return to its original shape

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14
Q

Define FLEXIBLE

A

Can be bent without breaking

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15
Q

Define TOUGH

A

Can change shape but doesn’t break

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16
Q

Define ABSORBENT

A

Soaks up liquids

17
Q

Define an ELECTRICAL CONDUCTOR

A

A material that allows electricity to flow through it.

18
Q

Define a THERMAL CONDUCTOR

A

A material that allows heat to flow through it.

19
Q

Define MAGNETIC

A

Can be attracted by magnets

20
Q

Define TRANSPARENT

A

Can be seen through.

21
Q

Define HARD

A

Can not be scratched or marked easily.

22
Q

Define BOUYANT

A

Can float on water

23
Q

Describe the look and feel of a metal and a non-metal.

A

Metal: Shiny and hard.

Non-metal: Dull and brittle.

24
Q

Describe the weight of a metal and a non-metal.

A

Metal: Heavy.

Non-metal: Light or heavy.

25
Q

Describe the thermal and electrical conductivity of a metal and a non-metal.

A

Metal: Good conductor of heat and electricity.

Non-metal: Mostly insulators

26
Q

Define VISCOSITY.

A

The degree to which a liquid resists flowing. Syrup is very viscous.

27
Q

Give 3 examples of metals.

A

Iron, aluminium, gold, silver copper …

28
Q

Give 3 examples of non-metals

A

Plastic, wood, wool, gases …

29
Q

Explain the word DENSITY

A

Density is the mass per unit volume of a substance.

30
Q

State 4 ways to prevent metals from rusting.

A

Coat the metal in plastic
Paint the metal
Coat the metal in another metal that doesn’t rust
Coat the metal with oil or grease.