Matter

Question 1

3 states of matter

Answer 1

Solids
Liquids
Gases

Question 2

Characteristics of solid

Answer 2

-it cannot move unless someone moves it.
-it keeps its shape -unless it is broken
-the volume of a solid is always the same
Eg: a lump of coal

Question 3

Liquid matter

Characteristics

Answer 3

It can flow
A liquid has no shape but It takes the shape of the container it’s in
The volume of a liquid stays the same (pouring it from one container back to first container, the volume doesn’t change but shape will
Eg: water

Question 4

Gas matter (characteristics)

Answer 4

• a gas can flow and will spread As far as it can
• a gas can change shape
• a gas can also change volume (ie: it can expand or be compressed)

Question 5

Changes of state

Answer 5

Water- ice = freezes
Ice-water= melting
Water- steam= boils/evaporates
Steam-water= condenses

Question 6

Condensation:

Answer 6

The changing of a gas to a liquid

Question 7

Sublimation:

Answer 7

Some solids- when heated change directly from a solid to a gas. Eg: soid carbon dioxide (dry ice)

Question 8

Melting:

Answer 8

The changing of a solid to a liquid

Question 9

Freezing:

Answer 9

The changing of a liquid to a solid

Question 10

Melting point:

Answer 10

The temperature at which all of the solid is turned into a liquid

Question 11

Boiling point:

Answer 11

The temperature at which all of the liquid is turning into a gas

Question 12

Diffusion

Answer 12

Diffusion is the movement of particles in a liquid of gas, from an area of high concentration to an area of low concentration until the particles are evenly spread

Question 13

Matter

Answer 13

Matter is anything which occupies space and has mass