Ideas
A Context For the topic
The sets of mythical creatures: the ice trolls and their friends the lava dragons. Bothe creature live in Iceland, the trolls amongst the frozen glaciers and the dragons around warm volcanic vents. They are friends but they have a problem: the trolls melt and get poorly if they try to visit the dragons; whilst the dragons chill down and get poorly if they to visit the trolls. Some trolls have heard that if they wrap themselves up and it will help them stay frozen but many other trolls think this is bad idea. The trolls want to know what the children think and ask for their assistance to help find out if wrapping up would work. This is great context for learning about thermal insulation but it also allows the general exploratio of materials required for conceptual change.
Facts
Magnet
Iron is the easiet metal to magnetize and it also loses its magnetism easily. Steel is harder to magnetize but retain it's magnetism much better. This is why our school magnet are made of steel
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