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Mixtures 2
Seawater is a mixture. It is water, salt and other substances mixed together.

Mixtures 2

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Alloys are mixtures of metals. Alloying one metal with other metal(s) or non-metal(s) often enhances its properties. For example, steel is stronger than iron, its primary element.

How much do you know about mixtures? Have a go at all our Science quizzes on the subject.

1 .
The best description of a mixture is .......
A lot of substances jumbled together
One substance on its own
Two or more substances added together which can be easily separated
Two or more substances chemically joined together
2 .
Alloys are mixtures of metals. Which is NOT an alloy?
Brass
Bronze
Chromium
Solder
3 .
How would you separate a mixture of iron filings and sulfur?
Filter
Use a magnet
Use a sieve
Use tweezers
4 .
Air is a mixture of different gasses. Which list consists of gasses present in the air?
Hydrogen, oxygen, carbon dioxide
Nitrogen, hydrogen, carbon dioxide
Nitrogen, oxygen, carbon dioxide
Nitrogen, oxygen, hydrogen
5 .
A pure substance has a melting point which is .......
Higher than its freezing point
Lower than its boiling point
The same as its boiling point
The same as its freezing point
6 .
In a solution, the hotter the solvent .......
No more of the soluble solid dissolves
The less the solute dissolves
The quicker the soluble solid dissolves
The slower the solute dissolves
7 .
Which of these substances is a mixture?
Oxygen
Salt
Sea water
Water
Water, salt and other substances mixed
8 .
The name given to the liquid which dissolves the solid in a solution is .......
Distillate
Saturated
Soluble
Solvent
The solid dissolving is called the solute
9 .
The method used to separate colored dyes in ink is .......
Chromatography
Distillation
Evaporation
Filtration
Chroma comes from the Greek word for color, khroma
10 .
Which of the following is NOT a mixture?
Coca cola
Crude oil
Methane
Milk
Methane is a compound
Author:  Sue Davison

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