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OLH Year 7 End of topic test C1: substances and mixtures
By Kieran Amery
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Last updated over 2 years ago
20 questions
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Question 1
1.
Which of the following is not a state of matter?
Solid
Gas
Evaporation
Question 2
2.
The state of matter of a substance depends on its...
Temperature
Size
Colour
Question 3
3.
How can you identify if a material is a pure substance?
If it has a range of boiling points.
If it has a fixed boiling point.
If it boils easily.
Question 4
4.
What is the melting point of a substance?
The temperature a substance boils or condenses at.
The temperature a substance melts or freezes at.
100 degrees.
Question 5
5.
What happens to the temperature while a pure substance is boiling.
It remains the same.
It gets steadily higher.
It begins to drop.
Question 6
6.
Most materials are...
Mixtures.
Pure substances.
liquids.
Question 7
7.
How can you identify if a material is a mixture of substances?
It has a fixed boiling point.
It will not evaporate.
It has a range of boiling points.
Question 8
8.
In a solution of salt and water what is the solvent?
The water
The salt
The mixture of salt and water together
Question 9
9.
In a solution of salt and water what is the solute?
The water
The salt
The mixture of salt and water together
Question 10
10.
What does aqueous (aq) mean?
Insoluble
Aquatic
Dissolved in water
Question 11
11.
The mass of a solution is equal to...
...the mass of the solvent + the mass of the solute
...the mass of the solvent - the mass of the solute
...the mass of the solvent by itself
Question 12
12.
What technique can be used to test if an ink is a pure substance or a mixture?
Filtration
Chromatography
Brownian motion
Question 13
13.
How can we identify the number of substances in an ink.
Count the number of colours in the solution.
Separate the colours using filtration
Count the number of spots on the chromatogram
Question 14
14.
In what state of matter are particles vibrating in fixed positions?
Solid
Liquid
Gas
Question 15
15.
In what state of matter are particles far apart?
Solid
Liquid
Gas
Question 16
16.
What temperature can a substance evaporate at?
100 degrees only.
At it's boiling point only.
At any temperature.
Question 17
17.
What do we call the "jiggling" movement of solid grains in a fluid?
Brownian motion
Particle model
Change of state.
Question 18
18.
What causes the "jiggling" movement of solid grains in a fluid?
The solid particles vibrating in a fixed position.
Particles in the fluid randomly colliding with the grains.
Particles in the fluid deliberately colliding with the grains.
Question 19
19.
What is a fluid?
A substance that can flow (liquid or gas)
A substance that can vibrate (solid)
A substance that can dissolve a solid.
Question 20
20.
Why can we not see particles of a substance under a microscope?
They are invisible
They move too quickly
They are too small.