Separating Materials
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Transcript of Separating Materials
![Page 1: Separating Materials](https://reader036.fdocuments.us/reader036/viewer/2022062303/5562cddad8b42a6c498b47de/html5/thumbnails/1.jpg)
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Soluble : will dissolve or spread all through the liquid Insoluble : will not dissolve in the liquid Solute : a solid dissolved in a liquid Solvent : the liquid a solid dissolves in
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No Materials/substances
Condition after mixing with water
Dissolve / not dissolve
Mixture/ solution
1 Sugar The sugar seems disappear
Dissolve Solution
2 Salt The salt seems disappear
Dissolve Solution
3 Instant coffee
The water colour change into brown
Dissolve Solution
4 Sand The sand sink Not dissolve Mixture
5 Flour After a while the flour sink again
Not dissolve Mixture
6 Red syrup The water colour change into red
Dissolve Solution
7 Baking Powder
There is bubles produced and the powder sink
Not dissolve (the bubbles show reaction that produce gas)
Mixture
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3. colander
Tools for separating mixture 1. sieves
2. paper sieves
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Water and sand Decanting
Ways of separation
Liquid
Solids
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Oil
Water
Mixture Ways of separation
Evaporate the water
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Filtering using paper sieve
Evaporate the water
Water and salt
Ways of separation
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1. State true or false for each sentence!A. Salt will dissolve in water. ( )B. Sugar dissolves quicker in hot water than cold
water. ( )C. When sweet tea is heated, the sugar evaporates.
( )D. Stirring makes insoluble solids dissolve quicker.
( )
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a. What can they do to make Stage A quicker?b. What substance is removed at Stage B?c. What substance remains in the evaporating
dish at Stage C?d. Complete these two sentences. Choose
words from the list.insoluble solvent solid soluble solution
A solid dissolved in water is a ……………. A substance that can dissolve in water is
……….
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Which student has the correct answer to the teacher’s question? Choose from student A, B, C or D.
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A. What has happened to the salt?
B. She then pours some of the solution into a basin and heats it.
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When the salt solution is heated salt crystals are formed.What has happened to the water?