Old KS4 Science Curriculum - Science
Mission Objectives
Explain why ionic compounds can conduct electricity when molten or dissolved in water
Describe the reactions taking place at the positive and negative electrodes during electrolysis
Describe the reactions as either reduction or oxidation
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Words and meanings to learn
anode
An electrode which is positively charged leading to electrons withdrawing from an electrical device.
cathode
An electrode which is negatively charged leading to electrons going into an electrical device.
extraction
To remove something from a material.
aluminium
The chemical element of atomic number 13, a light silvery-grey metal.
cryolite
Mineral containing a fluoride of aluminium and sodium which is white.
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