what effects ice melting
TRANSCRIPT
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What Effects Ice Melting?
Our Science Investigation
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Display Area for Freezing and
Melting Science Unit
My class had been undertaking a science unit on Freezing and Melting, this unit formed the basis
for my science lesson series
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Deciding what to cover was only the
first step…I needed to consider what I wanted
them to achieve, how they were going to be able to achieve this and how this would help them to develop
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I needed to ask myself questions…
O What did they knowO How could they use thisO What were their next learning stepsO What aspects should I coverO What will the learning intentions beO What Nature of Science am I
incorporating
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Once I had my answersI needed to plan how to make it come together
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To find out their prior knowledge
and understandings
We started with an open discussion about Ice:
While passing around ice cubes we discussed words
that described ice and identified what we already
knew about ice
The students were proud of their knowledge of ice as a
solid
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We built on our discussion by creating posters
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Identifying what we knew about ice…
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We then questioned What else would we
like to know?
We used the question starter “I wonder……..”
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One of the questions that we wanted answered was:What affects ice
melting?
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The students identified substances that they wanted to investigate
O Their choices ranged from oil to vinegar and baking soda
O And from vinegar and salt to hot sauce
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We made predictions and used ice balloons to put them to the test
(please note; these two images are taken from the internet as my camera decided it wouldn’t work for these shots
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The ice balloons were a fantastic resource to use. The Large smooth balls
of ice enables students to clearly see the
characteristics of ice that we had been discussing.
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We noted our initial observations – and then monitored at set intervals
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When all our ice had melted….
O We discussed the results, drew our conclusions and compared our predictions
O Some of the results surprised us all
O We learnt that the motor oil, although turning our mixture into a gooey had little effect
O We also learnt that the hot sauce turned it a neat colour, and it smelled yummy, didn’t really effect the ice melting either.
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The vinegar and salt and the vinegar and baking soda made the ice melt a lot faster, they also altered the shape of the ice melting, with our other
mixtures the balloons melted evenly, when these two
mixtures were added the balloons bubbled and fizzed
and large dents formed.
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The students learnt about what sorts of mixtures can effect
ice melting
But they also learnt that investigations may answer some questions, but they also create new questions
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We now had more questions to investigate
…….On conclusion of this series of lessons, all the students were eager to explore, investigate, predict and find answers to
their new questions.
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This series of lessons was a huge success…
All students enjoyed wearing the ‘scientist hat’ and viewing themselves
as scientists.They posed questions, predicted
answers and tested theories.They learnt not only about the topic
that we were investigating but also the process of scientific investigation