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Science > Year 7 Revision Lab Safety ,particle model and separating mixtures > Flashcards

Year 7 Revision Lab Safety ,particle model and separating mixtures Flashcards

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1
Q

Give the meaning of this word

Toxic

A

Can be poisonous if spilt on skin and also can be poisonous if eaten, drunk or irritated to the eyes.

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2
Q

Give the meaning of this word

Oxidising

A

Acts as a source of oxygen and can help substances to burn

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3
Q

Give the meaning of this word

Corrosive

A

Can cause chemical burns to the skin or other materials like wood

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4
Q

Give the meaning of this word

Flammable

A

Catches fire easily

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5
Q

Give the meaning of this word

Harmful

A

Can be harmful if spilt on the skin, also harmful if eaten, drunk or get into the eyes

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6
Q

Give the meaning of this word

Explosive

A

May explode

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7
Q

Give the meaning of this word

Irritant

A

Can be irritating if is spilt on skin can also be irritating if eaten , drunk or get in your eyes

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8
Q

Look in booklet about the Hazard symbols

A

Have you looked

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9
Q

Name a good lab safety rule

A
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10
Q

Name the state change of

Liquid to gas

A

Liquid ➡️➡️➡️➡️gas
⬆️
Evaporation

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11
Q

Name the state change of

Solid to gas

A

Solid➡️➡️➡️➡️gas
⬆️
Subliming

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12
Q

Name the state change of

Solid to liquid

A

Solid➡️➡️➡️➡️liquid
⬆️
Melting

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13
Q

Name the state change of

Gas to liquid

A

Gas➡️➡️➡️➡️liquid
⬆️
Condensation

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14
Q

Name the state change of

Liquid to solid

A

Liquid ➡️➡️➡️➡️solid
⬆️
Freezing

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15
Q

Name the state change of

Gas to solid

A

Gas➡️➡️➡️➡️solid
⬆️
Solidifying

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16
Q

In dissolving what is the solid called that goes into the liquid

A

Solute (solid)

17
Q

Match the words with the definitions
Mixture A solid that dissolves
Solute. Method used to separate a soluble solid from a liquid
Solvent. If a solute doesn’t dissolve in a solvent then it is …
Solution Two or more substances ‘jumble up’ together
Soluble. When a liquid changes into a gas
Insoluble A liquid that doesn’t dissolve
Distillation If a solute dissolves in a solvent then it is…
Evaporation When a gas changes into a liquid
Condensation Formed when a solute completely dissolves in a solvent

A

Mixture

18
Q

If a solute (solid) into a liquid what is the liquid called

A

Solvent (liquid)

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