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15
×
Properties of a ceramic vase
Heavy
All of them
Opaque
Fragile
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15
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Which separation method is commonly used before serving wine?
Decanting
Evaporation
Distillation
Centrifuging
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15
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The property of an object that allows most of the light to pass through
Transparent
Translucent
Conductor
Opaque
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15
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The following method can be used if the compounds have different
Melting points
Densities
Boiling points
Weights
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15
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A solution has formed when...
The solvent changes colour.
The mixture goes cloudy.
All the solute has disappeared.
Bubbles form.
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15
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Which of these substances do we often use a centrifuge to separate?
Blood
Ink
Juice
Paint
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15
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This technique will separate very small quantities of a mixture, its name is..
Evaporation
Filtration
Dissolution
Chromatography
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lifesaver
Give 20 points!
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seesaw
Swap points!
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fairy
Take points!
5
10
15
20
25
×
baam
Lose 25 points!
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15
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Ruby made some instant black coffee. What would be the solute in her solution?
Water
Milk
It's not a solution
Granulated coffee
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banana
Go to last place!
Oops!
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gift
Win 25 points!
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rocket
Go to first place!
Okay!
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baam
Lose 25 points!
Oops!
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banana
Go to last place!
Oops!
×
gift
Win 20 points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
baam
Lose 25 points!
Oops!
15
×
Why might scientists wish to separate substances?
They want to obtain pure substances from nature.
A mixture contains a contaminant they want to get rid of.
To make rock candy.
They want to learn what some mixtures are made of.
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15
×
Which of these separation methods would you use to separate lead and iron filings?
Filtration
Magnetic separation
Centrifuging
Gravity separation
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15
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The property of light that allows a shadow to form
Opaque
Rigid
Colourful
Insulator
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15
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The substance which is able to pass through a filter is known as the...
Distillate
Liquid
Residue
Filtrate
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15
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Will wanted to extract essence from cinnamon bark. Which separation method would he use?
Filtration
Froth flotation
Distillation
Crystallisation
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