Tuesday, 26 July 2011

Magnetic Materials

As part of our science project the children tested a range of materials to see which were magnetic. R already had a good idea of which ones would be and which wouldn't.

Sorting materials into magnetic and non-magnetic.

First we established that only metals are magnetic. Next I asked them if all metals are magnetic. We went for a hunt around the house, first identifying metals and then testing to see which ones were magnetic. We had an interesting discussion about materials that looked like they were made from only 1 type of metal but were clearly made from different types as only certain parts were magnetic. We also investigated a pipe-cleaner which if touched in a certain way (where the wire inside was slightly exposed) could be held by a magnet

A funny picture of L getting a close up look at a magnetic cylinder

This cutter is magnetic

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