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Thursday, April 4, 2019

Investigating changes

Aim: to observe water as it changes state from solid to liquid and then to gas.
Method:
 1. Collect enough ice so that your beaker is half full and place the thermometer into it while you set up the rest of the equipment.

 2. Set up the retort stand and clamp alongside the tripod and gauze mat.

 3. Place the beaker of ice on the gauze mat and gently clamp the thermometer so that it is held upright and the scale is easy to see. The bottom of your thermometer should be low enough to still be covered by water when the thin ice melts, but not touching the bottom of the beaker.

 4. Record the initial temperature of the ice into data table below.

 5. Light the Bunsen burner and start timing with the stopwatch.

 6. Measure and record the temperature every minute.

 7. Continue measuring and recording the temperature until the water has been boiling for 2 - 3 minutes.

Results:
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Discussion:
We first filled in the beaker with ice then we open the Bunsen burner then we watched how the solid is slowly turning into liquid. The liquids temperature is increasing as it increases the particles of the liquid is separating we can see that steam/gas is evaporating.When it got to a hundred degrees the liquid started boiling and a lot of gas came out.

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