Matter and the particle model

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1

Slide 1

What On earth is the matter?

Slide 2

A.

B.

C. ?????

Slide 3

What

in the world is matter?

Slide 4

Matter is…

A. Anything that moves

B. Anything that takes

up space.

C. Something that cries.

Slide 5

B.

Anything that

takes up space!

Slide 6

The

types

Of matter are…

Slide 7

Solids

Liquids

Gases

Slide 8

How does matter change?

Put on your

thinking cap!

Slide 9

solid

liquid

gas

Changes of state

Slide 10

temperature

time

Changes of state – heating curve

Slide 11

Changes of state – cooling curve activity

Slide 12

Changes of state activity

Slide 13

The particle model

All substances are made up of particles (atoms, ions or molecules).

These particles are attracted to each other, some strongly and others weakly.

These particles move around (i.e. have kinetic energy).

The kinetic energy of particles increases with temperature.

TIME FOR A SONG

Slide 14

Temperature and energy

Slide 15

What is evaporation?

Evaporation occurs when the particles in a liquid escape to form a vapour.

Evaporation can occur at any temperature but it occurs most rapidly at a liquid’s boiling point.

The particles that escape take some energy from the remaining particles and so the temperature of the liquid falls.