Growing crystals
Aim: To make crystal form in a super saturated solution.
Equipment: Cooper sulfate powder, 2*250 mL beaker, a pencil or ice-block stick, some cotton string, a stirring rod, hot water (either provided by your teacher, or made by heating water over a bunsen until it is approximately 70 degree), a watch glass, a funnel and filter paper.
1.Pour approximately 150 mL of hot water into a 250 mL beaker
2.Add a spoonful of cooper sulfate powder and stir until it dissolves.
3.Repeat step 2 until no more copper sulfate will dissolve.
4.Filter the solution into a clean 250 mL beaker.
5.Pour a small amount of this solution into a watch glass.
6.Lable your watch glass and beaker and place the watch glass on a window-sill overnight.
The crystals are different sizes because
- It put in different places
- Its quantity of crystals.
- Temp of water when crystal.
The crystals are different sizes because
- It put in different places
- Its quantity of crystals.
- Temp of water when crystal
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