Aim-to observe convection into liquid
Method
1-set up a bunsen burener on a heatproof mat.put the gaze mat on tripod but just to one side of bunsen burner.
2-fill a beaker 200ml with 150 cold water
3-place the beaker on top of the triopd and gauze and allow it to settle for a few minutes.
4-carefully insert a drinking straw down the side of the beaker,ensuring the straw to touch the bottom of the beaker.be careful as you dont want to disturb the water too much.
5-using tweezers,drop a crystal of possaium permanganate down the inside of the straw.wait for the crystal to settle.
6-very gently,so to not disturb the water,remove the straw.
7-light the bunsen and slide it under the tripod so that you are only heating the outside of the beaker.
Observation-I saw the crystal dissolving in the water.the potassium permanganate was rising from the heat from the beginning
Explanation-the hot water was rises because of less dense.
Discussion-the hot water was rising because of less dense,the crystal dissolved into the water and rose to the top.
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