Flame Tests are one of my favourite topics. Explaining the colours of fireworks to year 8 in an online lesson.
Crimson Lithium
Lilac Potassium
Yellow Sodium
Red Strontium
Apple Green Barium
Green Boron
Blue Green Copper
Energy conversions: the Steam Engine. Chemical energy in the fuel is turned into thermal energy and then into kinetic energy. Passing down a...
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