experiment
particle theory of matter-convection
AIM- to observe convection in a liquid
EQUIPMENT- 200ml beaker ,water, tweezers,a crystal of potassium permanganate, a drinking straw, bunsen burner, heat mat, tripod and gauze mat.
METHOD-
- set up a bunsen burner on a heatproof mat. Put the gauze mat on the tripod but leave it just on one side .
- fill a 200ml beaker with 150ml cold water.
- place the beaker on top of the tripod and gauze mat and allow it to settle for a few minutes
- carefully insert a drinking straw down one side of the beaker , ensuring the straw is touching the bottom of the beaker. Be careful as you do not want to disturb the water too much.
- using tweezers, drop a crystal of potassium permanganate down the inside of the straw.Wait for the crystal to settle on the bottom of the beaker.
- very gently, so to not disturb the water, remove the straw.
- light the Bunsen and slide it under the tripod so that you are only heating the outside of the beaker where the crystal is. observe.
observation-The movement of the purple color was quick on the hot side because of convection
No comments:
Post a Comment
To support my learning I ask you to comment as follows:
1. Something positive - something you like about what I have shared.
2. Thoughtful - A sentence to let us know you actually read/watched or listened to what I had to say
3. Something thoughtful - how have you connected with my learning? Give me some ideas for next time or ask me a question.
Note: only a member of this blog may post a comment.