Afternoon Learning (29.06.2020)- Science
Fair –test investigation – Which material is best at keeping the tea warm?
To begin your learning today, have a watch of the video above. Look at how thermal insulators work in a wide range of contexts...
Today, we are going to begin with some evidence. Have a look at the graph above...
Use the graph to work out which cup kept the water the warmest for the longest time.
Which material do you think each cup might have been made from?
You can then begin to design your own investigation in order to find your own set of results.
Wrap each with a different material and then measure the temperature every 5 minutes or take a final reading only after 20 minutes.
All recording for this learning activity should be kept in your 'Remote Learning' books...
During this investigation there will be time for children to draw different objects and scenarios and explain how things are being kept warm or being kept cold: hats, chip papers, packed lunch boxes, Thermos flasks, sleeping bags, etc
Children could record their results in both a table and a line graph.
An additional task to support your learning...
Could you act out being the heat inside a cup of tea? Some of the materials (e.g. wool) make it harder for heat to travel outwards than others (e.g. metal).
Children should note down any patterns in their results. Do you know what a 'thermal conductor' or a 'thermal insulator' is? If not, can you find out the meanings of these for me?
Problem-solve – How do you keep the tea the warmest for the longest amount of time?
Using all of your knowledge of thermal insulation, you can do a range of things to a beaker of hot water in order to try and keep it warm (under parental guidance); add a lid and wrap it with several layers of insulating materials. You could find out after every 5 minutes whose design is working the best- perhaps have a competition against your parents?
Remember- science is about exploring the world around us...
For this learning opportunity, this is what I would like you to try. Good luck Penguins!