Online Test — Matter & Mixtures
10 Questions • 12 min • Chapter MCQ
12:00
Question 1 of 10
medium
A liquid has a fixed volume but no fixed…
Name
Weight
Particle
Shape
Explanation: Liquids keep their volume but take the container's shape.
Question 2 of 10
medium
Picking out small stones from rice by hand is called…
Winnowing
Filtering
Evaporation
Handpicking
Explanation: Removing bits by hand is handpicking.
Question 3 of 10
medium
Light husks can be separated from heavier grain by letting the wind blow them away. This is called…
Boiling
Filtering
Winnowing
Magnetising
Explanation: Winnowing uses wind to remove light husks.
Question 4 of 10
easy
Which of these is a mixture?
A single grain of sugar
Pure water
Salad of many vegetables
Pure gold
Explanation: A salad is a mixture of different things.
Question 5 of 10
hard
Adding heat usually makes particles move…
Slower and closer
Faster and spread apart
Backwards
To sleep
Explanation: Heat makes particles move faster and spread out.
Question 6 of 10
easy
A substance that dissolves is said to be…
Insoluble
Soluble
Frozen
Hard
Explanation: Things that dissolve are soluble.
Question 7 of 10
medium
Sugar dissolves faster when the water is…
Oily
Icy and still
Frozen
Warm and stirred
Explanation: Warmth and stirring speed up dissolving.
Question 8 of 10
medium
Sea water is not fit for drinking because it has too much dissolved…
Air
Sugar
Salt
Oil
Explanation: Sea water is too salty to drink.
Question 9 of 10
easy
In a mixture, the things mixed usually keep their own…
Weight lost
Colour only forever
Names lost
Properties
Explanation: Parts of a mixture keep their own properties.
Question 10 of 10
medium
Passing water through a cloth or filter removes…
All taste
Mud and visible dirt
Its weight
Its colour only
Explanation: Filtering removes mud and floating dirt.