States of matter Phases states of matter Substances

States of matter

Phases / states of matter Substances can exist in three different phases 1. Solid 2. Liquid 3. Gas When a substance changes from on phase into another, this is called a phase transition.

Phases / states of matter The Three phases

Recognize the phase Solid (s) Liquid (l) Gas (g) Partikel Solid (s) Liquid (l) Gas (g) grasping X see X X smell X Fix Mass X X X Fix Volume X X Fix shape X

Phase transition Solid © Over Betuwe College n tio ora on i t ap Ev n sa e nd co su bl i ma tio de n po si ti on Gas Solidify Melting Liquid

Phase transition Deposition : Sublimation:

Phase transition

A heating graph of a pure substance • At a phase transition, the temperature is constant. • Boling and melting point is a property of matter.

A heating graph of a pure substance T (°C) Melting and boiling of water 100 0 t (s) -20 Solid Liquid gas

A heating graph of a pure substance T (°C) The temperature stayes the same during the transition 50°C Boiling Melting Solid Liquid gas

Molecules in a substance pure substance Mixture One sort of molecules Several types of molecules

Mixture Heating graph of a mixture A mixture can be recognized by a melting or boiling range T (°C) boiling range 50°C - 58°C Melting range 58°C Solid Liquid gas

Mixture A mixture

The particle model of a mixture

Tree different mixtures solution emulsion solid with Liquid clear not bright suspension solid with Liquid not bright