C3 Electrolysis Introduction and electroplating

This lessons is designed to run through extension additional content quickly to a high achieving group. Students are re-introduced to electrolysis. Students fill in the A3 sheet throughout the class discussion.

Lesson 1
-electrolysis as decomposition.
-Cathode attracts positive cations because they are negatively charged.
-anode attracts negative anions because they are positively charged.
-OILRIG -oxidation is loss (and) reduction is gain (of electrons)

Lesson 2
-Students are introduced to the differences of electrolysing molten materials and solutions containing different solutes.
-Students complete a practical experiment: Electroplating a iron nail with copper. -Students complete exam questions.