Alternative electrolysis: Petri dish and pencils
- Petri dishes
- Battery pack (two or three D cells linked to give 3 or 4.5V)
- Leads and crocodile clips
- White paper or tile to stand dish on
CommentWe’ll ask you to pick one of these practicals to look at in depth in step 1.13, but for each make a few notes about the advantages and disadvantages for each one. Share your notes about this practical here.
Teaching Practical Science: Chemistry
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