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HIA International — Grade 6

Unit 1: Cells and organisms

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Unit 2: States of matter, atoms and compounds

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Unit 3: The Solar System and energy

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Unit 4: Living organisms and classification

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Unit 5: Metals, non-metals, acids and alkalis

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Unit 6: Sound, the Earth and eclipses

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Unit 7: Microorganisms and food webs

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Unit 8: Chemical reactions

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Unit 9: Electricity and circuits

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Quiz

Checkpoint Grade 6 Unit 2 – 2.1 Solids Liquids And Gases

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Solids Liquids And Gases Checkpoint Chemistry quiz: free practice for Cambridge Checkpoint (chemistry). Work through this Solids Liquids And Gases Checkpoint Chemistry quiz and get instant feedback on every answer. If you get stuck, review the 9.1 Solids liquids and gases lesson. More practice: Cambridge Checkpoint (chemistry) — all units. Syllabus: Cambridge Lower Secondary programme.

  • Questions count: 43
  • Passing grade: B+
  • Time limit:
Start Quiz
1.
Which statement best expresses the lesson objective about Solids, liquids and gases?
Classify matter as a solid, liquid or gas
The terms compressed and flow are always interchangeable
Evidence is unnecessary when studying Solids, liquids and gases
Every model is an exact copy of reality
2.
Which practical work belongs to Solids Liquids And Gases?
Measure temperature and volume while heating water and identify patterns in results
Interpret a water-cycle diagram and connect evaporation, condensation, precipitation and run-off
Model particles physically to represent melting, freezing, evaporation and condensation
Use observations to classify materials and evaluate a particle model
3.
Each box in the diagram shows how the particles are arranged in a different substance at room temperature. Which box shows a substance that can be poured but keeps the same volume whatever container it is in?
Dr Dabour Hub Academy - figure 1
Box B, because its particles touch but can slide past each other
Box A, because its particles are free to move anywhere
Box C, because its particles are touching and packed closely
Box A, because its particles are spread out so it has a fixed volume
4.
Zain seals the end of a bicycle pump with his finger, as shown, and pushes the handle. The plunger moves in part of the way, then stops. Which explanation is correct?
Dr Dabour Hub Academy - figure 2
The air particles shrink when they are squeezed, so they take up less room
There are empty spaces between the air particles, so they can be pushed closer together
Some of the air particles are destroyed, so there are fewer of them
The air particles are touching, so the air cannot be squashed at all
5.
Mr Okafor opened a dish of peppermint oil at the front of a still hall. Students standing at different distances raised a hand when they first smelled it. Which statement best describes and explains the results in the graph?
Dr Dabour Hub Academy - figure 3
The further away, the shorter it took, because gas particles speed up as they travel
Every student smelled it at the same moment, because gas fills a room instantly
The further away, the longer it took, as gas particles from the oil spread out through the air
The time was longest near the dish, because liquid particles move slowly
6.
Leila drew the diagram to show the particles in a beaker of lemon juice. Which is the best feedback on her drawing?
Dr Dabour Hub Academy - figure 4
The particles should be drawn in neat, regular rows
The particles should be even further apart to show they can flow
The drawing is correct, because liquids take the shape of their container
The particles should be touching each other, with no regular pattern
7.
In a demonstration, a gas jar of brown gas was placed under a jar of air, separated by a glass plate. The diagram shows the jars before and 10 minutes after the plate was removed. What does this show?
Dr Dabour Hub Academy - figure 5
Gas particles only vibrate in fixed positions, so they stay where they started
Gas particles move freely in all directions, so each gas spreads to fill all the space
The brown gas is heavier, so its particles all stay in the bottom jar
Air particles push the brown particles down so they cannot move upwards
8.
Omar pours dry sand from a bucket into a jar and says: "Sand is a liquid, because it pours and takes the shape of the jar." He then looks at the sand through a hand lens, as shown. Which is the best evaluation of his claim?
Dr Dabour Hub Academy - figure 6
Right – anything that can be poured must be a liquid
Wrong – sand is a gas, because it can be squashed into a smaller volume
Wrong – each grain is a solid with its own fixed shape; the heap pours because the grains are separate pieces
Right – the grains slide past each other, just like liquid particles
9.
A teacher tested four substances and recorded the results in the table. Which two substances are in the same state of matter?
Q and R, which are both liquids
Q and S, which are both gases
P and R, which are both solids
P and S, which are both solids
10.
The table shows how an idea about matter developed. Which statement about the stages is correct?
At stage 2 it is a hypothesis; it becomes a theory at stage 5
At stage 2 it is already a theory, because it explains the observation
It becomes a theory at stage 3, as soon as one investigation supports it
At stage 1 it is a hypothesis, because something has been noticed
11.
Chen sorted four substances into states and gave a reason for each. Which row is wrong?
Row 1 – honey is a solid because it flows slowly
Row 3 – a brick is a liquid because it can be broken
Row 2 – the air is a gas; the football case holds its shape
Row 4 – cooking gas is a liquid because it is in a cylinder
12.
Hannah's class used a pump to remove all the air from a strong sealed bottle, then weighed it empty, full of air and full of water. Which conclusion do the results support?
Air has no mass, because the change is only 1.2 g
Air weighs more than water, because it fills the whole bottle
The empty bottle weighs nothing, because it contains no particles
Air has mass, but a litre of it weighs far less than a litre of water
13.
Ava made the table to summarise particle theory. One cell contains a mistake. Which correction is needed?
Liquid movement should be: particles slide past each other
Solid arrangement should be: far apart, random
Gas movement should be: vibrate in place
Solid forces should be: almost none
14.
A teacher released 100 cm³ of a gas, and separately 100 cm³ of water, into empty sealed containers of different sizes. What do the results show?
Both the gas and the water have a fixed volume
The gas has no fixed volume but the water has a fixed volume
The water spreads out to fill each container completely
The gas always takes up 100 cm³, whatever the container
15.
A diver's small steel tank holds enough air to fill a whole room. Which explanation is correct?
The air particles in the tank have been made smaller
The air in the tank has been turned into a solid
Air can be compressed, so its particles are pushed much closer together in the tank
Air particles in the tank touch in regular rows, like a solid
16.
Maria says: "Particle theory is only a theory, so it is just a guess." Which is the best reply?
She is right, because nobody can see particles
She is right, because every theory starts as a hypothesis
In science a theory means an idea that nobody has tested yet
In science a theory has been tested and widely accepted, so it is not a guess
17.
Jana wants to test the hypothesis: "A liquid keeps the same volume whatever container it is in." Which plan is best?
Measure 100 cm³ of water in a measuring cylinder, pour it into different containers, then pour it back and measure again
Pour water into three containers and see which has the highest water level
Freeze some water in different containers and compare the ice shapes
Squeeze a plastic bottle of water and see if it changes shape
18.
When Noor pours water into a vase, the water takes the shape of the vase. Which explanation uses particle theory correctly?
The particles are far apart, so they spread to fill the vase
The particles are fixed in rows, so they copy the vase's shape
The particles stay touching but can slide past one another
The particles change shape to fit the inside of the vase
19.
When toast burns in the kitchen, the smell soon reaches every room of the house, but the toast itself stays on the plate. Which explanation is best?
The toast particles are too heavy to move, so the smell must be made by the air
Liquid particles from the toast flow along the floor into each room
Solid particles move faster than gas particles, so the toast stays still
Gas particles from the toast move freely and spread, but solid toast particles only vibrate in place
20.
Which observation is the best evidence that air is made of matter, even though we cannot see it?
You can feel air moving against your face on a windy day
Air is invisible, so light passes straight through it
Air has no smell unless something is cooking
Air cannot be poured from a jug like water
21.
Each option pairs a state of matter with how its particles are arranged. Which pairing is correct?
Solid – particles far apart in a random pattern
Gas – particles far apart and spread out randomly
Liquid – particles in neat, fixed rows
Gas – particles touching in regular rows
22.
Each option pairs a key term with its meaning. Which pairing is correct?
Property – the smallest piece of matter
Compressed – spread out to fill a container
Flow – stay in one place and keep a fixed shape
Vibrate – move quickly to and fro about a fixed position
23.
Each option pairs an observation with a particle explanation. Which pairing is correct?
Juice can be poured – particles are far apart with large gaps
A syringe of water cannot be squashed – particles move freely
An ice cube keeps its shape on a plate – particles are held in fixed positions
Air fills a balloon – particles are held in rows by strong forces
24.
Each option pairs an everyday object with the property of matter it relies on. Which pairing is correct?
Air-filled bubble wrap – gases can be compressed to cushion a knock
A drinking glass – liquids keep their own shape
A tyre pump – solids can be compressed
A funnel – gases cannot flow
25.
Which term is described as: the force between particles that holds them together?
spacing
kinetic particle theory
attractive force
density
26.
The amount of space that a substance takes up is called _____.
its volume
its weight
its property
its particle
27.
Liquids and gases can both _____, which means they move and take the shape of whatever contains them.
vibrate only
keep their shape
flow freely
be seen easily
28.
An idea suggested to explain an observation, which has not yet been proved, is called a _____.
particle theory
hypothesis
vacuum space
property
29.
A gas can be squashed into a smaller volume but a solid cannot, because only in a gas are there _____ between the particles.
strong forces
regular rows
drops of water
large empty spaces
30.
The attractive forces between particles are weakest in a solid. - True or false?
True
False
31.
The attractive forces between particles are strongest in a solid. - True or false?
True
False
32.
Samira poured 150 cm³ of water from a jug into each container shown. She says: "The dish holds less water than the cylinder, because the water level in the dish is much lower." True or false?
Dr Dabour Hub Academy - figure 7
False – each holds 150 cm³; only the shape of the water changed
True – a lower level always means a smaller volume
True, but only because the dish is wider
False – the dish actually holds more water than the cylinder
33.
The spaces between the particles of a gas are filled with air. True or false?
True – air fills every gap between particles
True, but only in gases other than air
False – there is nothing at all between them (a vacuum)
False – the spaces are filled with water vapour
34.
The particles in a solid do not move at all. True or false?
True – strong forces hold them completely still
False – they vibrate to and fro about fixed positions
True, but only in very hard solids like iron
False – they slide past each other slowly
35.
Scientists sort matter into three groups called the states of matter: solid, liquid and gas. True or false?
False – there are only two states: solid and liquid
False – the three states are wood, water and air
True, but only for substances found in nature
True – these are the three states of matter
36.
Ali says: "The forces between gas particles are almost zero, so gas particles stay still wherever they are put." True or false?
False – with almost no forces holding them, they move about freely
True – no forces means nothing makes them move
True, but only when the gas is in a sealed jar
False – strong forces pull them into regular rows
37.
A liquid can be compressed easily because its particles are not arranged in a fixed pattern. True or false?
True – particles with no pattern can be squeezed together
False – its particles already touch, so there is no space to squash
True, but only if the liquid is poured first
False – because liquid particles are in regular rows
38.
In a liquid, the particles are arranged in regular rows like a solid, but with bigger gaps between the rows. True or false?
True – this is why liquids can flow
True, but only in thick liquids such as syrup
False – liquid particles touch each other and have no pattern
False – liquid particles are far apart like a gas
39.
A kitchen sponge gets smaller when squeezed. This shows that solid materials can be compressed easily. True or false?
True – the sponge is a solid and it got smaller
True, but only when the sponge is dry
False – because a sponge is really a liquid
False – the air in the sponge's holes is compressed, not the solid
40.
Particles of matter are large enough to see with a hand lens. True or false?
False – particles are far too small to see
True – a hand lens shows each separate particle
True, but only the particles in solids
False – you need only a torch to see them
41.
A solid keeps its shape because its particles are held in a fixed pattern by strong forces and can only vibrate. True or false?
False – solids keep their shape because they are heavy
True – they cannot move past one another
False – solid particles are far apart
True, but only when the solid is cold
42.
Honey pours very slowly, so it must be a solid rather than a liquid. True or false?
True – liquids always pour quickly
True, but only when honey is kept cold
False – it flows and takes its container's shape, so it is a liquid
False – honey is a gas because it can flow
43.
The particles of a liquid touch each other but can slide past one another. True or false?
False – liquid particles are fixed in place
False – liquid particles never touch
True, but only in hot liquids
True – this is why a liquid can flow
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Part of Unit 2: States of matter, atoms and compounds — see every lesson and quiz in this unit.
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