Changing Materials: Explore Material Properties and Transformations

Question 1

What happens when you heat a block of ice?

Accepted Answer

It melts

Answer

It becomes a liquid

Answer

It becomes a gas

Answer

It evaporates

Question 2

What is the name of the property that allows materials to be stretched or bent?

Accepted Answer

Elasticity

Answer

Malleability

Answer

Ductility

Answer

Hardness

Question 3

Which of these is a chemical change?

Accepted Answer

Burning paper

Answer

Melting chocolate

Answer

Freezing water

Answer

Stretching a rubber band

Question 4

If you heat ice cream, what will happen to it?

Accepted Answer

It will melt

Answer

It will freeze

Answer

It will turn into water

Answer

It will stay the same

Question 5

What happens to liquid water that is cooled to below 0 degrees Celsius?

Accepted Answer

It turns into a solid

Answer

It turns into a gas

Answer

It turns black

Answer

Nothing happens

Question 6

When ice melts, what type of change is it?

Accepted Answer

Physical change

Answer

Chemical change

Answer

Biological change

Answer

Nuclear change

Question 7

Which of the following materials is not magnetic?

Accepted Answer

Copper

Answer

Iron

Answer

Nickel

Answer

Cobalt

Question 8

When you heat a solid, what does it usually change into?

Accepted Answer

Liquid

Answer

Gas

Answer

Plasma

Answer

Supercritical fluid

Question 9

What process causes a liquid to turn into a solid?

Accepted Answer

Freezing

Answer

Evaporation

Answer

Condensation

Answer

Sublimation

Question 10

Which of these materials is a good conductor of electricity?

Accepted Answer

Metal

Answer

Wood

Answer

Rubber

Answer

Plastic

Question 11

Which of these materials is waterproof?

Accepted Answer

Wax

Answer

Paper

Answer

Cotton

Answer

Sponge

Question 12

When you heat water, what does it turn into?

Accepted Answer

Steam

Answer

Ice

Answer

Snow

Question 13

Which of these is an example of a change that can be undone?

Accepted Answer

Melting ice

Answer

Burning paper

Answer

Rusting iron

Question 14

Which of these materials is good at letting heat pass through it?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Question 15

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

Accepted Answer

Evaporation

Answer

Condensation

Answer

Freezing

Question 16

Which material keeps heat in well?

Accepted Answer

Wood

Answer

Metal

Answer

Glass

Answer

Water

Question 17

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

Accepted Answer

Evaporation

Answer

Condensation

Answer

Melting

Answer

Freezing

Question 18

What do we use to measure temperature?

Accepted Answer

A thermometer

Answer

A ruler

Answer

A scale

Answer

A clock

Question 19

What happens to the size of a gas when it gets hotter?

Accepted Answer

It gets bigger

Answer

It gets smaller

Answer

It stays the same

Answer

It turns into a liquid

Question 20

Which material lets light pass through it?

Accepted Answer

Glass

Answer

Wood

Answer

Metal

Answer

Water

Question 21

Which of these is a mixture?

Accepted Answer

Salt water

Answer

Gold

Answer

Oxygen

Answer

Carbon dioxide

Question 22

Which of these is a solid at room temperature?

Accepted Answer

Ice

Answer

Water

Answer

Steam

Answer

Air

Question 23

What is the process of turning a gas into a liquid called?

Accepted Answer

Condensation

Answer

Melting

Answer

Evaporation

Answer

Freezing

Question 24

Which material conducts heat the best?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 25

What happens when ice is heated?

Accepted Answer

It turns into water.

Answer

It turns into steam.

Answer

It becomes a solid.

Answer

It turns into a gas.

Question 26

Which of these is a mixture?

Accepted Answer

Salt water

Answer

Salt

Answer

Sugar

Answer

Water

Question 27

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

Accepted Answer

Evaporation

Answer

Melting

Answer

Condensation

Answer

Freezing

Question 28

Which material insulates heat the best?

Accepted Answer

Wood

Answer

Metal

Answer

Plastic

Answer

Rubber

Question 29

When salt is mixed with water, what happens?

Accepted Answer

It dissolves.

Answer

It floats on the surface.

Answer

It sinks to the bottom.

Answer

It changes colour.

Question 30

When you make a fruit salad, you mix different fruits together. How can you separate the fruits in the salad?

Accepted Answer

Sort them by hand

Answer

Filter them

Answer

Use a magnet

Answer

Heat them up

Question 31

When you bend it, which material will change shape?

Accepted Answer

Plasticine

Answer

Wood

Answer

Glass

Answer

Metal

Question 32

When ice is heated, what does it change into?

Accepted Answer

Water

Answer

Snow

Answer

Steam

Answer

Air

Question 33

Which of these is NOT a way to change the properties of a material?

Accepted Answer

Leaving it in the sun

Answer

Heating it

Answer

Cooling it

Answer

Mixing it with another material

Question 34

When sugar is mixed into water, what happens to the sugar?

Accepted Answer

It dissolves

Answer

It floats on top of the water

Answer

It turns the water a different color

Answer

It sinks to the bottom of the water

Question 35

Which material conducts heat best?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 36

Which of these changes can be undone?

Accepted Answer

Melting ice

Answer

Burning wood

Answer

Cooking an egg

Answer

Rusting iron

Question 37

When a liquid is heated to boiling point, what happens to it?

Accepted Answer

It turns into a gas

Answer

It turns into a solid

Answer

It turns into a liquid

Answer

It turns into a plasma

Question 38

Which of these is NOT a mixture?

Accepted Answer

Oxygen

Answer

Mud

Answer

Salt water

Answer

Air

Question 39

When a solid is heated, what happens to its particles?

Accepted Answer

They move faster

Answer

They move slower

Answer

They change shape

Answer

They stop moving

Question 40

Which of these is a reversible change?

Accepted Answer

Melting ice

Answer

Burning paper

Answer

Baking a cake

Answer

Rusting iron

Question 41

Which of these materials is a good conductor of heat?

Accepted Answer

Metal

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 42

When you stretch a rubber band, what happens to its length?

Accepted Answer

It increases

Answer

It breaks

Answer

It remains the same

Answer

It decreases

Question 43

What happens when you mix flour and water?

Accepted Answer

It forms a paste

Answer

It forms a solid

Answer

It forms a liquid

Answer

It forms a gas

Question 44

Which of the following is a property of metals?

Accepted Answer

Shiny

Answer

Brittle

Answer

Transparent

Answer

Flexible

Question 45

Which of the following materials is NOT magnetic?

Accepted Answer

Plastic

Answer

Cobalt

Answer

Iron

Answer

Nickel