Form III grow stalactites
Stalactites and stalagmites are stone formations found in some limestone caves.
Stalactites hang from the walls or roof and stalagmites grow up from the floor, sometimes they join to make a column.
This process takes thousands of years.
Form III have grown their own stalactite as part of their science topic on rocks and soils.
They dissolved washing soda crystals in hot water. Two beakers were then filled with the solution and a piece of string was put between them to act as a wick. The stalactite took about 3 days to form.
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