Physical Processes: Interactive Quizzes for Year 1 Science

Question 1

Which of these is NOT a physical change?

Accepted Answer

Burning wood

Answer

Melting ice

Answer

Boiling water

Answer

Freezing water

Question 2

Why do we hang wet clothes outside to dry?

Accepted Answer

The sun's heat turns the water into steam, which then evaporates.

Answer

The breeze helps the water drip off the clothes.

Answer

The air outside is cooler than the water, so the water condenses and falls off the clothes.

Answer

The clothes rub against each other when they blow in the wind, which helps the water come out.

Question 3

What happens to the ice when you put it in a glass of water?

Accepted Answer

It melts.

Answer

It stays the same.

Answer

It evaporates.

Answer

It sublimates.

Question 4

When water is heated to 100 degrees Celsius, what happens to it?

Accepted Answer

Boils

Answer

Freezes

Answer

Evaporates

Question 5

Which of these has a solid, a liquid, and a gas?

Accepted Answer

A box with ice, water, and steam

Answer

A cup of hot chocolate

Answer

A block of cheese

Answer

A cloud

Question 6

What will happen if you put a cold can of soda in a warm room? Explain your answer using what you know about physical processes.

Accepted Answer

Water droplets will form on the outside of the can.

Answer

The can will stay cold.

Answer

The soda inside the can will freeze.

Question 7

When ice changes directly into water vapor, which physical process is taking place?

Accepted Answer

Sublimation

Answer

Condensation

Answer

Evaporation

Answer

Melting

Question 8

When water turns from a gas back into a liquid, what is this process called?

Accepted Answer

Condensation

Answer

Evaporation

Answer

Freezing

Answer

Melting

Question 9

What can make ice melt quicker?

Accepted Answer

Putting it somewhere warm

Accepted Answer

Making the ice cube smaller

Accepted Answer

Adding salt to the ice

Answer

Putting it in the fridge

Question 10

When a solid melts, what happens to the way its particles move?

Accepted Answer

They move faster and further apart.

Answer

They slow down and move closer together.

Answer

They stop moving and stay in the same place.

Question 11

How can freezing and melting affect the way a mountain looks on a cold day?

Accepted Answer

Freezing water can crack rocks, making the mountain look jagged.

Accepted Answer

Melting water can wash away soil and rocks, making the mountain look smoother.

Answer

Freezing and melting water can change the color of rocks.

Answer

Freezing and melting have no effect on the appearance of a mountain.

Question 12

On a hot day, why do we often see tiny drops of water forming on the outside of a cold glass filled with a cold drink?

Accepted Answer

The cold glass cools the air around it, causing the water vapor in the air to turn into tiny drops of water.

Answer

The heat from the cold drink causes the water vapor in the air to turn into tiny drops of water.

Answer

The tiny drops of water come from the cold drink sweating.

Answer

The cold drink cools down and releases water vapor that turns into tiny drops of water.

Question 13

Imagine we have a block of ice at -10 degrees Celsius. What will happen to the ice if we gradually heat it up to 100 degrees Celsius?

Accepted Answer

The ice will melt into water at 0 degrees Celsius, and then the water will boil into steam at 100 degrees Celsius.

Answer

The ice will change directly from a solid to a gas.

Answer

The ice will turn into a solid block of water when it reaches 100 degrees Celsius.

Question 14

How does a refrigerator use evaporation to keep food cold?

Accepted Answer

The refrigerator cools the air inside by evaporation, which helps keep the food cold.

Answer

The refrigerator warms the air inside by evaporation, which helps keep the food warm.

Answer

The refrigerator turns food into liquid by evaporation, which helps keep the food cold.

Answer

The refrigerator turns food into ice by evaporation, which helps keep the food cold.

Question 15

What causes leaves to change color in autumn?

Accepted Answer

A chemical reaction in the leaves is triggered by temperature changes.

Answer

Trees need to shed their leaves to prepare for winter.

Answer

Leaves receive less sunlight and need to conserve energy.

Question 16

What happens when you put a pot of water on the stove and turn the heat up high?

Accepted Answer

The water will boil.

Answer

The water will freeze.

Answer

The water will turn into ice.

Answer

The water will change colour.

Question 17

When you put an ice cube in a glass of warm water, what happens to the ice cube?

Accepted Answer

It melts.

Answer

It stays the same.

Answer

It turns into water vapor.

Answer

It freezes.

Question 18

When we add salt to water, what happens to the freezing point of the water? Does it freeze at a higher or lower temperature than pure water?

Accepted Answer

The freezing point goes down, so the water freezes at a lower temperature.

Answer

The freezing point goes up, so the water freezes at a higher temperature.

Answer

The freezing point stays the same, so the water freezes at the same temperature.

Answer

The freezing point goes up, but the water freezes at a lower temperature.

Question 19

When ice melts, where does the energy come from that causes it to change from a solid to a liquid?

Accepted Answer

The energy comes from a heat source, such as the sun or a heater.

Answer

The energy comes from the air around the ice.

Answer

The energy comes from the ice itself.

Question 20

When ice melts into water, what happens to the tiny pieces that make up the ice?

Accepted Answer

They move further apart and become less organized.

Answer

They get closer together and become more organized.

Answer

They stay in the same place but start to move faster.

Question 21

When you put a lid on a boiling pot, why does the water eventually stop boiling?

Accepted Answer

The vapor under the lid creates pressure, slowing down evaporation and eventually stopping it.

Answer

The lid traps heat, causing the water to overheat and stop boiling.

Answer

The water runs out of oxygen and can't boil anymore.

Answer

The lid absorbs the heat, causing the water to cool down and stop boiling.

Question 22

You have a block of ice and want to melt it quickly. Which three things could you change to make the ice melt faster?

Accepted Answer

Make the ice block smaller.

Accepted Answer

Put the ice block in a warmer place.

Accepted Answer

Increase the surface area of the ice block.

Question 23

When you hang a wet towel outside, it dries, even on a cold day. What is happening to the water in the towel?

Accepted Answer

Evaporation

Answer

Freezing

Answer

Condensation

Question 24

When water turns into water vapor, it takes energy from its surroundings. What type of energy transfer is happening, and what is the energy used for?

Accepted Answer

Heat energy moves from the surroundings to the water, causing it to evaporate.

Answer

Light energy moves from the water to the surroundings, causing it to evaporate.

Answer

Electrical energy moves from the surroundings to the water, causing it to evaporate.

Answer

Chemical energy moves from the surroundings to the water, causing it to evaporate.

Question 25

What happens when we heat ice?

Accepted Answer

It melts.

Answer

It burns.

Answer

It evaporates.

Answer

It freezes.

Question 26

What happens when we boil water in a saucepan?

Accepted Answer

It evaporates.

Answer

It freezes.

Answer

It melts.

Answer

It condenses.

Question 27

Where do we see condensation?

Accepted Answer

On a cold window on a warm day.

Answer

When we boil water.

Answer

When ice melts.

Answer

When snow turns to rain.

Question 28

What happens to the particles in water when it changes from a solid to a liquid?

Accepted Answer

They move more and become less ordered.

Answer

They move less and become more ordered.

Answer

They change shape and size.

Answer

They disappear.

Question 29

What happens when water vapour turns into water?

Accepted Answer

It condenses.

Answer

It melts.

Answer

It evaporates.

Answer

It sublimates.

Question 30

Which of these is NOT a state of matter?

Accepted Answer

Heat

Answer

Solid

Answer

Liquid

Answer

Gas

Question 31

Which of these is NOT a state of matter?

Accepted Answer

Light

Answer

Solid

Answer

Liquid

Answer

Gas

Question 32

What happens to ice when it is heated up?

Accepted Answer

It turns into water

Answer

It turns into gas

Answer

It stays the same

Answer

It becomes a different color

Question 33

When water is boiling, what is happening?

Accepted Answer

It turns into gas

Answer

It turns into ice

Answer

It turns into liquid

Answer

It stays the same

Question 34

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

Accepted Answer

Condensation

Answer

Evaporation

Answer

Freezing

Answer

Melting

Question 35

Which of these materials is a good conductor of heat?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 36

When ice melts, what does it become?

Accepted Answer

water

Answer

air

Answer

steam

Question 37

When a gas changes into a liquid, what is the process called?

Accepted Answer

condensation

Answer

melting

Answer

evaporation

Answer

freezing

Question 38

Which of these is a liquid at room temperature?

Accepted Answer

water

Answer

ice

Answer

air

Answer

metal

Question 39

What is the name of the process when a liquid turns into a gas?

Accepted Answer

evaporation

Answer

condensation

Answer

freezing

Answer

sublimation

Question 40

What is a special feature of gases?

Accepted Answer

they don't have a fixed shape or volume

Answer

they have a fixed shape

Answer

they have a fixed volume

Question 41

At what temperature does water freeze?

Accepted Answer

0 degrees Celsius

Answer

0 degrees Fahrenheit

Answer

100 degrees Celsius

Question 42

What happens when a solid changes into a gas without first becoming a liquid?

Accepted Answer

sublimation

Answer

melting

Answer

evaporation

Answer

condensation

Question 43

What happens to a puddle of water left outside on a warm day?

Accepted Answer

It evaporates.

Answer

It freezes.

Answer

It boils.

Question 44

Which of these is NOT a state of matter that something can be in?

Accepted Answer

Energy

Answer

Solid

Answer

Gas

Answer

Liquid

Question 45

You're baking a delicious chocolate cake. To check if it's ready, you carefully insert a toothpick into the center. When you pull it out, it's clean. What does this mean?

Accepted Answer

The cake is ready to be taken out of the oven.

Answer

The cake needs more time in the oven.

Answer

The cake is overcooked.

Answer

The cake is not cooked enough.

Question 46

When ice turns into water, what process is happening?

Accepted Answer

Melting

Answer

Freezing

Answer

Condensation

Answer

Evaporation

Question 47

When water changes from a liquid to a gas, what is this process called?

Accepted Answer

Evaporation

Answer

Condensation

Answer

Freezing

Answer

Melting

Question 48

Which of these is NOT a state of matter?

Accepted Answer

Fluffy

Answer

Solid

Answer

Liquid

Answer

Gas

Question 49

When water gets very hot and starts to bubble, what is happening to it?

Accepted Answer

Boiling

Answer

Freezing

Answer

Melting

Answer

Condensing

Question 50

When water turns into ice, what happens to its temperature?

Accepted Answer

It goes down

Answer

It goes up

Answer

It stays the same

Answer

It changes rapidly

Question 51

Which of these things would melt the fastest in the sun?

Accepted Answer

An ice cube

Answer

A plastic bottle

Answer

A metal spoon

Answer

A wooden block

Question 52

When water disappears into the air, what is happening to it?

Accepted Answer

Evaporation

Answer

Condensation

Answer

Freezing

Answer

Melting

Question 53

What can you do to make water disappear into the air faster?

Accepted Answer

Heat it up

Answer

Cool it down

Answer

Stir it

Answer

Freeze it

Question 54

When you take a cold glass out of the fridge on a hot day, why do tiny drops of water appear on the outside of the glass?

Accepted Answer

Water vapor in the air turns into liquid water on the cold surface of the glass.

Answer

The cold glass cools the air around it, causing the air to turn into water.

Answer

The glass sweats because it is too hot.

Answer

The glass is wet because you touched it with your wet hands.

Question 55

What is the word for water turning into a gas?

Accepted Answer

Evaporation

Answer

Melting

Answer

Condensation

Answer

Freezing

Question 56

As the temperature of a liquid increases, what happens to the particles in the liquid?

Accepted Answer

They move faster

Answer

They move slower

Answer

They disappear

Answer

They change color

Question 57

Which state of matter has a fixed shape and volume?

Accepted Answer

Solid

Answer

Liquid

Answer

Gas

Answer

Plasma

Question 58

What is the opposite process of condensation?

Accepted Answer

Evaporation

Answer

Melting

Answer

Freezing

Answer

sublimation

Question 59

What happens when you heat ice?

Accepted Answer

It melts and turns into water.

Answer

It evaporates and turns into a gas.

Answer

It freezes and turns into a solid.

Answer

It condenses and turns into a liquid.

Question 60

What is the process called when water changes from a liquid to a gas?

Accepted Answer

Evaporation

Answer

Condensation

Answer

Freezing

Answer

Melting

Question 61

When the temperature of water goes down below freezing, it becomes a:

Accepted Answer

Solid

Answer

Gas

Answer

Liquid

Answer

Vapour

Question 62

Which of these is NOT a physical change?

Accepted Answer

A leaf turning brown

Answer

Water turning into steam

Answer

Ice turning into water

Answer

Sugar dissolving in water

Question 63

What happens to butter when you heat it?

Accepted Answer

It melts and becomes a liquid.

Answer

It evaporates and becomes a gas.

Answer

It freezes and becomes a solid.

Answer

It condenses and becomes a liquid.

Question 64

When water gets very hot, it starts to:

Accepted Answer

Boil and turn into a gas

Answer

Freeze

Answer

Melt and turn into a liquid

Answer

Condense and turn into a solid