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Year 5 – Merlin’s Challenge

by Helen Farren on November 9, 2018 No comments

Dear Year 5,

My apprentice and I have been debating whether all materials can go through reversible changes (like water). I don’t agree with him and think that some changes are irreversible. Can you help me prove this to him? I am out of time so can’t give you instructions. Please design your own investigation and let me know how you get on. The only thing I will tell you are the methods to test the materials:

  • burning
  • Heating
  • Mixing
  • rusting

From Merlin


Helen FarrenYear 5 – Merlin’s Challenge

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