Changing States Exemplar

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An example of a PowerPoint template being used to show Changing States (water)

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Changing States Exemplar

  1. 2. Aim: To observe the change of state of ICE. Prediction: We think that ice will melt in 5 minutes. It will not change colour or make any sound. It will turn into cold water.
  2. 3. Materials: Block of ice (1/2 cup) Plate Camera and tripod 2 lamps Water bottle Plastic cup Stop watch
  3. 4. <ul><li>Method: </li></ul><ul><li>We half filled a plastic cup with water and froze it overnight. </li></ul><ul><li>We tipped the block of ice onto the plate. </li></ul><ul><li>We put the lamps facing the ice. </li></ul><ul><li>We took photos every two minutes until the ice melted. </li></ul>
  4. 5. Results: We watched the ice melt. While the ice melted, it moved on the plate and made a small cracking noise once. The ice took 53 minutes to melt. There was a plate of water at the end. Click in blue box to play.
  5. 6. Conclusion: The ice took a lot longer to melt than we thought, even though we had lamps on it. It made a noise and moved because it was contracting. It did turn into cold water when it melted because the room was warmer than the freezer.
  6. 7. Reflection: I learnt that because lamps are warm they make the ice melt, and warmer temperature causes a solid to change into a liquid. I want to know ….. Why don’t icebergs melt?

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