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To begin we will be discussing our previous lesson on melting as this lesson is then exploring the reverse. We will also spend time talking about our unit so far, and the learning that has taken place. To help develop our understanding we will be watching the Youtube clip on changing states of matter to extend knowledge.
For today's lesson you will be making ice cream. When making ice cream you will not however be using a freezer, but rather use ice to create the freezing process. You will be working in pairs to follow the procedure below and create your own ice cream. How to make ice cream: Materials / ingredients (per pair) - 1 medium zip lock bag - 1 large zip lock bag - 300ml cream - 2 tbsp caster sugar - 1 tsp vanilla essence - 2 trays of ice cubes method 1. Place cream, caster sugar and vanilla essence in the medium zip lock bag and close. shake the bag gently to combine. 2. Place the ice into the large zip lock bag 3. Place the medium bag (with cream mixture) into the large zip lock bag (with ice). Seal the large zip lock bag. 4. using your hands massage or shake the large bag gently. The cream mixture will begin to freeze within the smaller bag. Ice cream is ready after around 5 minutes, or when the cream mixture has begun to freeze. Once you have completed this experiment we will discuss what we saw occur, the concept of freezing and whether each pair experienced different results. This discussion should link to the concept of states of matter that has been explored in the past two lessons. To extend this knowledge, students can visually look at the states of matter by clicking the image below the YouTube clip. To conclude you will be asked to write about your learning in your science journal and any further clarification you need about concepts covered so far in the topic. |
Image of states of matter obtained from: Encyclopædia Britannica. (2014).
Image of ice cream obtained from: Vacca Foeda Media. (2012).
Image of ice cream obtained from: Vacca Foeda Media. (2012).