Chemistry : Chemical Changes
Overview
This topic ties together a lot of fundamental theory work from KS3 with practical elements. Pupils will study the reactivity series of metals and REDOX reactions, and learn about acid reactions and their relative strengths. Acid-base titrations will be studied which links to some of the quantitative chemistry pupils studied last year. The students will also complete work on synthesising soluble salts, electrolysis and the extraction of metals.
The main SMSC/Personal Development content of this topic includes: PD15 – Sense of enjoyment and fascination in learning about themselves, others and the world around them, PD16 – Use of imagination and creativity in their learning and PD17 – Willingness to reflect on their experiences.
The main UN Rights of a Child covered are No.13 – Sharing thoughts freely and No.28 – Access to Education.
Example Key Words
Reactivity Series
A list of common metals ordered by their reactivity from highest to lowest.
Reduction
The removal of oxygen, or gain of electrons to a chemical during a reaction.
Oxidation
Oxidation is the gain of oxygen or loss of electrons during a reaction to a molecule, atom or ion.
Soluble
A substance which can be dissolved by a solvent.
Salt
A neutral crystaline product formed from acid – base neutralisation reactions.
Extraction
The method used to obtain a pure metal from its ore.