Chemistry: Age 12
4 illustrated Chemistry lessons for Age 12.
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Soap Molecules and Oil Soap molecules have a round head that mixes with water and a wavy tail that mixes with oil. They gather around… -
Salt from Seawater When seawater evaporates, the water rises into the air as vapour. The dissolved salt stays behind and forms wh… -
Heat Trapped in Air Some gases in the air soak up heat that rises from the ground and send it back down. This keeps the lower air … -
Separating Sand and Salt from Water Water can carry sand that stays in lumps and salt that dissolves into it. Filtering traps the sand, and heatin…