Investigating State Changes

Aim:
To observe water as it changes state from solid to liquid to gas.\

Equipment:

• 250mL beaker
• Thermometer
• Bunsen Burner
• Heatproof Mat
• Tripod
• Gauze Mat
• Stopwatch
• Retort sort
• Clamp
• Ice cubes

Method:

• Put your ice in your beaker and place your thermometer and set up your equipment.
• Attach your retort stand and clamp to your thermometer (make sure your thermometer is covered but not touching the bottom of the beaker)
• Light the Bunsen burner and start timing with your stopwatch.
• Measure and record the temperature every minute.
• Continue recording until the water has started to boil.

Results:

0 minutes: 0°c

1 minute: 40°c

2 minutes: 58°c

3 minutes: 93°c