Changing Materials: Interactive Quizzes for Year 5 Science

Question 1

Which of these changes involves a new substance being formed?

Accepted Answer

Burning wood

Answer

Cutting paper into small pieces

Answer

Dissolving sugar in water

Answer

Freezing water

Question 2

Which of these is NOT a physical change?

Accepted Answer

Burning paper

Answer

Melting ice

Answer

Dissolving sugar in water

Answer

Freezing water

Question 3

When a substance melts, what happens to its particles?

Accepted Answer

They move further apart.

Answer

They move closer together.

Answer

They change shape.

Answer

They break apart.

Question 4

Why does water expand when it freezes?

Accepted Answer

Because the particles move further apart.

Answer

Because the particles move closer together.

Answer

Because the particles change shape.

Answer

Because the particles break apart.

Question 5

What happens to the particles in a substance when it burns?

Accepted Answer

They break apart and form new substances.

Answer

They move closer together.

Answer

They move further apart.

Answer

They change shape.

Question 6

Which of these is a chemical change?

Accepted Answer

Burning paper

Answer

Melting ice

Answer

Dissolving sugar in water

Answer

Freezing water

Question 7

What is the name of the process in which a gas changes directly to a solid without first becoming a liquid?

Accepted Answer

Sublimation

Answer

Melting

Answer

Freezing

Answer

Condensation

Question 8

When a liquid changes into a solid, it undergoes the process called:

Accepted Answer

Freezing

Answer

Melting

Answer

Evaporation

Answer

Condensation

Question 9

Which material is most likely to conduct heat well?

Accepted Answer

Metal

Answer

Plastic

Answer

Wood

Answer

Rubber

Question 10

Which of these changes cannot be reversed?

Accepted Answer

Burning wood

Answer

Melting ice

Answer

Dissolving sugar in water

Answer

Boiling water

Question 11

A material that allows heat or electricity to flow through it easily is called a:

Accepted Answer

Conductor

Answer

Insulator

Answer

Resistance

Answer

Capacitor

Question 12

Which of these changes is a chemical change?

Accepted Answer

Burning paper

Answer

Melting ice

Answer

Freezing water

Answer

Dissolving salt in water

Question 13

What is the process called when a solid turns directly into a gas?

Accepted Answer

Sublimation

Answer

Deposition

Answer

Evaporation

Answer

Condensation

Question 14

Which of these is most likely to be a good electrical insulator?

Accepted Answer

Wood

Answer

Salt water

Answer

Metal

Answer

Graphite

Question 15

What happens when the temperature of a gas increases?

Accepted Answer

The speed and spread of its particles increase

Answer

Its particles slow down and come closer together

Answer

Its particles change shape and become solid

Answer

Its particles disappear

Question 16

What happens when a liquid changes into a solid?

Accepted Answer

Freezing

Answer

Melting

Answer

Evaporation

Answer

Condensation

Question 17

Which of these is a good conductor of heat?

Accepted Answer

Copper

Answer

Rubber

Answer

Plastic

Answer

Wood

Question 18

When a material is heated, which of these changes CANNOT occur?

Accepted Answer

Freezing

Answer

Melting

Answer

Evaporation

Answer

Boiling

Question 19

What is the term for the process where a solid becomes a liquid?

Accepted Answer

Melting

Answer

Freezing

Answer

Condensation

Answer

Deposition

Question 20

Which of these factors does NOT influence the melting point of a material?

Accepted Answer

Size

Answer

Temperature

Answer

Pressure

Answer

Composition

Question 21

Which term best describes a change where a new substance is created?

Accepted Answer

Chemical change

Answer

Physical change

Answer

Reversible change

Answer

Irreversible change

Question 22

Which of these is an example of a chemical change?

Accepted Answer

Burning paper

Answer

Melting ice

Answer

Dissolving sugar in water

Answer

Freezing water

Question 23

What is the process called when a liquid transforms into a gas?

Accepted Answer

Evaporation

Answer

Condensation

Answer

Sublimation

Answer

Deposition

Question 24

Out of these materials, which one has the highest melting point?

Accepted Answer

Gold

Answer

Water

Answer

Iron

Answer

Mercury

Question 25

When a gas directly changes into a solid, what is this process termed?

Accepted Answer

Deposition

Answer

Sublimation

Answer

Condensation

Answer

Evaporation

Question 26

Which of these is NOT a safety measure when working with chemicals?

Accepted Answer

Tasting chemicals to identify them

Answer

Wearing gloves and eye protection

Answer

Working in a well-ventilated area

Answer

Disposing of chemicals properly

Question 27

When ice melts and turns into water, what type of change is this?

Accepted Answer

Physical change

Answer

Chemical change

Question 28

What happens to the particles in a solid when it is heated?

Accepted Answer

They move faster and spread out.

Answer

They slow down and come closer together.

Answer

They change shape and size.

Answer

They disappear.

Question 29

Which of these will melt at room temperature?

Accepted Answer

Butter

Answer

Ice

Answer

Sugar

Answer

Salt

Question 30

What happens when you burn a piece of paper?

Accepted Answer

A chemical change occurs, releasing energy.

Answer

A physical change occurs, changing the shape of the paper.

Answer

No change occurs, the paper remains the same.

Answer

The paper magically disappears.

Question 31

Which of these changes cannot be reversed?

Accepted Answer

Burning paper

Answer

Freezing water

Answer

Boiling water

Answer

Melting chocolate

Question 32

Which word describes the process where a liquid turns into a gas?

Accepted Answer

Evaporation

Answer

Condensation

Answer

Sublimation

Answer

Precipitation

Question 33

What is the difference between a mixture and a compound?

Accepted Answer

A mixture can be separated by physical means, while a compound cannot.

Answer

A compound can be separated by physical means, while a mixture cannot.

Answer

A mixture is made up of only two elements, while a compound is made up of more than two elements.

Answer

A compound is made up of only two elements, while a mixture is made up of more than two elements.

Question 34

How is it called when a gas turns directly into a solid?

Accepted Answer

Deposition

Answer

Sublimation

Answer

Condensation

Answer

Evaporation

Question 35

Which of these is NOT a physical change?

Accepted Answer

Burning

Answer

Melting

Answer

Freezing

Answer

Crushing

Question 36

What happens when a solid turns into a liquid?

Accepted Answer

Melting

Answer

Freezing

Answer

Evaporation

Answer

Sublimation

Question 37

Which factor does NOT affect the melting point of a substance?

Accepted Answer

The size of the substance

Answer

Temperature

Answer

Pressure

Answer

Composition of the substance

Question 38

What type of change occurs when a substance burns?

Accepted Answer

Chemical change

Answer

Physical change

Answer

Nuclear change

Answer

Biological change

Question 39

Which of the following is an example of a chemical change?

Accepted Answer

Burning wood

Answer

Tearing paper

Answer

Freezing water

Answer

Melting chocolate

Question 40

What is the difference between melting and evaporation?

Accepted Answer

Melting involves a phase change from solid to liquid, while evaporation involves a phase change from liquid to gas.

Answer

Melting occurs at a higher temperature than evaporation.

Answer

Evaporation occurs at a higher temperature than melting.

Answer

Melting is a chemical change, while evaporation is a physical change.

Question 41

Why does ice float on water?

Accepted Answer

Because ice is less dense than water.

Answer

Because ice is more dense than water.

Answer

Because ice is lighter than water.

Answer

Because air is trapped in the ice.

Question 42

When ice melts, it turns into a liquid. What type of change is this?

Accepted Answer

Physical change

Answer

Chemical change

Question 43

When a solid melts, what happens to the particles inside?

Accepted Answer

They move further apart.

Answer

They move closer together.

Answer

They change shape and size.

Question 44

When you burn wood, is it a physical or a chemical change?

Accepted Answer

Chemical change

Answer

Physical change

Question 45

Which of these materials can conduct heat well?

Accepted Answer

Metal

Answer

Wood

Question 46

What is the process called when you separate a mixture by heating it up and condensing the vapor?

Accepted Answer

Distillation

Answer

Filtration

Question 47

Which of these changes cannot be reversed?

Accepted Answer

Rusting iron

Answer

Melting ice

Question 48

When a gas changes directly into a solid, what is it called?

Accepted Answer

Sublimation

Answer

Melting

Question 49

Which of these changes cannot be undone?

Accepted Answer

Burning paper

Answer

Dissolving sugar in water

Answer

Stretching a rubber band

Answer

Freezing ice

Question 50

What is the name of the change where a solid turns directly into a gas?

Accepted Answer

Sublimation

Answer

Condensation

Answer

Evaporation

Answer

Deposition

Question 51

Which of these materials lets heat pass through it easily?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 52

When you heat up a material, what happens to the particles inside it?

Accepted Answer

They speed up.

Answer

They slow down.

Answer

They change shape.

Answer

They disappear.

Question 53

Which of these is a change where a new substance is formed?

Accepted Answer

Burning wood

Answer

Mixing salt and water

Answer

Tearing paper

Answer

Melting ice

Question 54

What is the name of the change where a liquid turns into a gas?

Accepted Answer

Evaporation

Answer

Condensation

Answer

Sublimation

Answer

Deposition

Question 55

What is ice in its liquid form called?

Accepted Answer

Water

Answer

Steam

Answer

Slush

Question 56

Which of these is a permanent change to a material?

Accepted Answer

Burning a piece of wood

Answer

Dissolving salt in water

Answer

Crinkling a piece of paper

Question 57

What happens when a liquid becomes a solid?

Accepted Answer

It freezes

Answer

It evaporates

Answer

It condenses

Question 58

Which material is most likely to let electricity pass through it?

Accepted Answer

Metal

Answer

Wood

Answer

Glass

Question 59

What do the particles in a substance do when it melts?

Accepted Answer

Move faster and spread out

Answer

Move slower and bunch together

Answer

Change shape

Question 60

Why do different materials melt at different temperatures?

Accepted Answer

They are made of different particles

Answer

They are different sizes

Answer

They have different colours

Question 61

What happens to water when it boils?

Accepted Answer

It turns into gas.

Answer

It turns into ice.

Answer

It turns into a solid.

Answer

Nothing happens.

Question 62

When you melt a chocolate bar, what two factors affect how quickly it melts?

Accepted Answer

The temperature of the chocolate bar and the size of the chocolate bar

Answer

The type of chocolate and the shape of the chocolate bar

Answer

The color of the chocolate bar and the brand of the chocolate bar

Answer

The weather and the time of day

Question 63

When you stir sugar into water, what happens to the sugar?

Accepted Answer

The sugar breaks down into tiny pieces that spread out in the water.

Answer

The sugar disappears.

Answer

The sugar gets smaller and smaller.

Answer

The sugar floats on top of the water.

Question 64

When you burn a piece of paper, what is the main gas that is produced?

Accepted Answer

Carbon dioxide

Answer

Oxygen

Answer

Water vapor

Answer

Nitrogen