Section 1 a)

Question 1

1.1- Understand the arrangement, movement and energy of the particles in each of the three states of matter: solid, liquid and gas

Answer 1

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Solids- all the particles are touching, they are not moving and the particles have no energy
Liquids- Liquid particles, like solids, are touching. However the liquid particles are moving- flow to fit the space- which means that they have some enegry
Gas- In gases the particles aren’t touching; they are far apart. They move freely and have a high energy level.

Question 2

1.2- understand how the interconversions of solids, liquids and gases are achieved and recall the names used for these interconversions

Answer 2

https://sjesci.wikispaces.com/file/view/changeofstate.jpeg/242053393/277x260/changeofstate.jpeg
Solid to Liquid = this is called melting: you apply heat
Liquid to Solid= This is freezing, you remove heat
Liquid to Gas= Heat is added, this process is called evaporation
Gas to Liquid= removed heat: condensing

Question 3

1.3 - explain the changes in arrangement, movement and energy of particles during these interconversions

Answer 3

Solid: still; no energy; all particles touching

Liquid: moving to fit space; some energy; all particles touching

Gas: moving freely; lots of energy; particles not touching.