Matter and Materials

Question 1

What are the three states of matter?

Answer 1

Solid, liquid, gas.

Question 2

Define matter

Answer 2

Everything around us that takes up space & has mass

Question 3

Describe the differences between the 3 states of matter in terms of their shape

Answer 3

Solid: fixed.
Liquid: not fixed.
Gas: takes up space, but doesn’t have shape

Question 4

Describe the differences between the 3 states of matter in terms of how they change their shape

Answer 4

Solid: changes shape by force.
Liquid: takes the shape of the container it is in eg milk in a glass.
Gas: moves around freely, spreads into open spaces.

Question 5

Can you see some gases?

Answer 5

Yes

Question 6

Can you smell gas?

Answer 6

Sometimes. Do an experiment to prove this by farting

Question 7

What happens when you melt something?

Answer 7

Changes solid to liquid

Question 8

What have you melted in your life before? Have you ever melted something you weren’t supposed to?

Answer 8

Examples: butter (over popcorn)cheese (on toasted cheese) candle wax
Ice cream

Question 9

What is evaporation? Give some examples

Answer 9

Change from liquid to gas.
Water in a pool or dam
Drying clothes/dishes

Question 10

What does water turn into when you heat it?

Answer 10

Water vapor

Question 11

What is Condensation? Give examples

Answer 11

Gas changing to liquid
Dew on grass
Water in windscreen of car
Steam from kettle

Question 12

Give example of something solidifying?

Answer 12

Solidify: Liquid to solid. Eg. Ice

Question 13

Describe water cycle

Answer 13

Clouds: condensation leads to rain (precipitation)
Snow melts -> rivers
Ocean water evaporates in sun -> into clouds

Question 14

What is precipitation in the context of weather?

Answer 14

Water falling from the sky

Question 15

Give some examples of raw materials, & things you can make from them

Answer 15

Coal: used for fuel eg fire
Sand: glass
Clay: pottery, floor (ceramic) tiles
Coal & oil: plastic things

Question 16

What properties of wet clay make it good for turning into different ceramic objects?

Answer 16

Soft & malleable

Question 17

What’s the difference between malleable & brittle

Answer 17

Malleable: shaped easily
Brittle: breaks easily

Question 18

How would you unsolidify something? What would you call that?

Answer 18

Heat it up eg ice, ice cream.

Melting

Question 19

Describe the solid state.

Answer 19

A solid has a fixed shape that cannot change easily except by force.

Question 20

Describe the liquid state.

Answer 20

A liquid doesn’t have a fixed shape but takes on the shape of the container. Liquids can flow.

Question 21

Describe the gaseous state.

Answer 21

A gas moves around freely and fills the space or closed container.

Question 22

What gases is air made up of?

Answer 22

Mostly nitrogen and oxygen gas.

Question 23

Define ‘matter’

Answer 23

Matter is everything that takes up space and has mass.

Question 24

Define ‘mass’

Answer 24

Mass is the amount of material in an object.

Question 25

Describe the change during melting.

Answer 25

From solid to liquid.

Question 26

Describe the change during evaporation.

Answer 26

From liquid to gas.

Question 27

Describe the change during condensation.

Answer 27

From gas to liquid.

Question 28

Describe the change during solidifying.

Answer 28

From liquid to solid.

Question 29

What raw material is used to make glass?

Answer 29

Sand.

Question 30

What raw material is used to make ceramics?

Answer 30

Clay.

Question 31

Explain the word 'malleable'

Answer 31

It means that something can be easily shaped.

Question 32

What are the raw materials used to make plastics, paints and fabrics?

Answer 32

Coal and oil.

Question 33

What are raw materials?

Answer 33

Naturally occurring materials like wood, clay, oil etc.

Question 34

What are manufactured materials?

Answer 34

Products made from natural materials.