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

Mixtures 2

This Science quiz is called 'Mixtures 2' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.

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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.
Which of the following is NOT a mixture?
Coca cola
Crude oil
Methane
Milk
Methane is a compound
2.
Alloys are mixtures of metals. Which is NOT an alloy?
Brass
Bronze
Chromium
Solder
3.
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
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.
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
6.
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
7.
The method used to separate colored dyes in ink is .......
Chromatography
Distillation
Evaporation
Filtration
Chroma comes from the Greek word for color, khroma
8.
Which of these substances is a mixture?
Oxygen
Salt
Sea water
Water
Water, salt and other substances mixed
9.
How would you separate a mixture of iron filings and sulfur?
Filter
Use a magnet
Use a sieve
Use tweezers
10.
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
Author:  Sue Davison

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