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  • Student sheet 1 goes with this slide

seeker 3 domain seeker 3 domain Presentation Transcript

  • Aimant is still not sure what causes magnetism. Your task is to answer her questions. Is it caused by an evil spirit pushing and pulling? Is it a physical field that is a property of some materials? Is it a spell that can only be produced by trained magicians? Is it a substance, given out by magnets, that can’t be squashed? 3 Try holding two strong repelling magnets and pushing them together. Engage Explore Explain Elaborate Extend Evaluate Elicit
    • Later ...
  • The domain theory is a model for explaining magnetism. If the domains are randomly magnetised, the magnetic effects cancel each other out. If the domains are all magnetised in the same direction, the magnetic effects all push or pull together. An iron object is made of many tiny magnetic domains. Student Sheet 1 5 Unmagnetised Magnetised Part magnetised Engage Explore Explain Elaborate Extend Evaluate Elicit
    • Later ...
  • Task B: tell me how to shield our precious things from the magnetic effect. Please make instructions for me to take home . Task A: show me how to plot the magnetic pattern around it. These are my final tasks for you. I have brought a sample of lodestone rock from my world. Flux spell and shield spell 8 Lodestone Engage Explore Explain Elaborate Extend Evaluate Elicit