States of Matter

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Evaporation and condensation in the water cycle

Subtopic

Evaporation and condensation in the water cycle under States of Matter for Grade 5 IGCSE.

Preview questions (no answers)

1.
$Which of these best describes the formation of a cloud?$
A. $Water vapor cooling and condensing into liquid droplets$
B. $Liquid water heating up and turning into gas$
C. $Solid ice melting into liquid water$
D. $Liquid water freezing into solid ice$
2.
$Why is the sun necessary for the water cycle?$
A. $It provides the heat needed for evaporation$
B. $It makes the water turn blue$
C. $It stops the rain from falling$
D. $It creates the salt in the ocean$
3.
$What is the opposite change of state to evaporation?$
A. $Freezing$
B. $Condensation$
C. $Melting$
D. $Boiling$
4.
$Which of these is the gas form of water?$
A. $Ice$
B. $Snow$
C. $Water vapor$
D. $Rain$
5.
$Which of the following processes in the water cycle is driven primarily by gravity?$
A. $Evaporation$
B. $Transpiration$
C. $Precipitation$
D. $Condensation$
6.
$What happens to water vapor as it rises and meets the colder air of the upper atmosphere?$
A. $It expands and disappears forever$
B. $It gains energy and moves faster$
C. $It loses energy and undergoes condensation$
D. $It turns into solid salt$
7.
$Fog is often found near the ground on cool mornings. What is fog actually made of?$
A. $Pure water vapor gas$
B. $Tiny liquid water droplets suspended in the air$
C. $Smoke from nearby houses$
D. $Thin layers of ice$
8.
$What happens to the movement of water molecules when they move from the ocean into the atmosphere as vapor?$
A. $They slow down and become more organized.$
B. $They speed up and move further apart.$
C. $They stop moving and wait for the wind.$
D. $H_2O$
9.
$A student wants to dry his wet shoes quickly. He has a choice of putting them in a warm, closed cupboard or in a cool room with a strong fan. Which should he choose?$
A. $The warm cupboard, because heat is the only factor in evaporation.$
B. $The cool room with the fan, because removing the vapor layer is often more effective than just heating in a closed space.$
C. $Neither, shoes cannot dry without direct sunlight.$
D. $It doesn't matter; they will take exactly the same time.$
10.
$Which transition in the diagram below represents a decrease in the spacing between molecules?$
A. $A to B$
B. $B to A$
C. $A to C$
D. $C to A$

Download the worksheet for States of Matter - Evaporation and condensation in the water cycle to practice offline. It includes additional chapter-level practice questions.

Boiling, melting, and freezing points

Subtopic

Boiling, melting, and freezing points under States of Matter for Grade 5 IGCSE.

About Topic & Revision

Preview questions (no answers)

1.
$Which of the following is true about the freezing and melting points of pure water?$
A. $0^\circ C$
B. $Melting point is higher$
C. $Freezing point is higher$
D. $100^\circ C$
2.
$If a plastic toy is left too close to a fire, it might lose its shape and turn into a puddle. This is because of:$
A. $Freezing$
B. $Melting$
C. $Boiling$
D. $Evaporation$
3.
$When we say 'pure water,' we mean it has no other substances mixed in. Pure water always boils at _______ at normal pressure.$
A. $0^\circ C$
B. $50^\circ C$
C. $100^\circ C$
D. $10^\circ C$
4.
$What happens to the temperature of water while it is freezing?$
A. $It goes up$
B. $0^\circ C$
C. $100^\circ C$
D. $-100^\circ C$
5.
$Which of the following processes requires the removal of heat energy from a substance?$
A. $Melting$
B. $Evaporation$
C. $Freezing$
D. $Boiling$
6.
$If you see 'steam' coming out of a kettle, what is the 'cloud' you see actually made of?$
A. $Pure gas (water vapor)$
B. $Tiny droplets of liquid water$
C. $Solid ice crystals$
D. $Smoke from the heat$
7.
$At what temperature does ice begin to melt into water?$
A. $0^{\circ}C$
B. $32^{\circ}C$
C. $100^{\circ}C$
D. $Both A and B are correct.$
8.
$In the diagram below, a substance is moving from State 1 to State 2. If this represents 'Melting', what is the state of the particles in State 1?$
A. $They are moving freely in all directions.$
B. $They are vibrating in fixed positions.$
C. $They are sliding over one another.$
D. $They are widely spaced and highly energetic.$
9.
$100^{\circ}C$
A. $100^{\circ}C$
B. $100^{\circ}C$
C. $The temperature would drop slightly as more bubbles form.$
D. $The liquid would freeze due to the rapid evaporation.$
10.
$-30^{\circ}C$
A. $-50^{\circ}C$
B. $-10^{\circ}C$
C. $10^{\circ}C$
D. $-40^{\circ}C$

Download the worksheet for States of Matter - Boiling, melting, and freezing points to practice offline. It includes additional chapter-level practice questions.

The behavior of particles in solids, liquids, and gases

Subtopic

The behavior of particles in solids, liquids, and gases under States of Matter for Grade 5 IGCSE.

About Topic & Revision

Preview questions (no answers)

1.
$In a science experiment, a student sees bubbles forming in boiling water. What is inside those bubbles?$
A. $Air from the room$
B. $Empty space$
C. $Water vapor (gas)$
D. $Solid ice$
2.
$Which state of matter can be easily squeezed into a smaller volume?$
A. $Gas$
B. $Liquid$
C. $Solid$
D. $Metal$
3.
$Which of these describes the space between particles in a solid?$
A. $There is a huge amount of space.$
B. $There is almost no space because they are packed tightly.$
C. $The space is constantly changing as they fly around.$
D. $The space is the same as in a gas.$
4.
$When a liquid turns into a solid, the particles:$
A. $Spread out.$
B. $Start moving much faster.$
C. $Lose energy and get into a fixed pattern.$
D. $Disappear into the air.$
5.
$The diagram below shows a substance changing from one state of matter to another. Based on the behavior of particles, what is occurring during this transition?$
A. $The particles are losing energy and becoming more organized.$
B. $The particles are slowing down and moving into a fixed pattern.$
C. $The particles are gaining enough energy to move independently in all directions.$
D. $The particles are shrinking in size to fit into a larger volume.$
6.
$If you have a sealed syringe full of air and you push the plunger, what are you mainly squashing?$
A. $The air particles themselves$
B. $The space between the air particles$
C. $The plastic of the syringe$
D. $The liquid inside the air$
7.
$What is the name for the temperature at which a liquid becomes a gas throughout the whole liquid?$
A. $Freezing point$
B. $Melting point$
C. $Boiling point$
D. $Condensation point$
8.
$When a substance changes from a liquid to a solid, what is this energy change called?$
A. $The particles gain thermal energy.$
B. $The particles lose thermal energy to the surroundings.$
C. $The particles create new energy to bond together.$
D. $No energy change occurs during freezing.$
9.
$If you were to draw a diagram of gas particles, how should they be spaced and directed?$
A. $Close together with all arrows pointing down.$
B. $Widely spaced with arrows pointing in various random directions.$
C. $Touching each other with arrows pointing in circles.$
D. $Arranged in rows with no arrows.$
10.
$In which state of matter are the particles most affected by attractive forces?$
A. $Gas$
B. $Liquid$
C. $Solid$
D. $They are affected equally in all states$

Download the worksheet for States of Matter - The behavior of particles in solids, liquids, and gases to practice offline. It includes additional chapter-level practice questions.

States of Matter

Evaporation and condensation in the water cycle

❓Preview questions (no answers)

Boiling, melting, and freezing points

❓Preview questions (no answers)

The behavior of particles in solids, liquids, and gases

❓Preview questions (no answers)

Preview questions (no answers)

Preview questions (no answers)

Preview questions (no answers)