As part of our science work this half term, the children in Year 3 have been learning about different forces. Today, we explored the amazing world of magnets!
We learnt that magnets have an invisible force field around them, which pulls certain materials in and makes them stick. We enjoyed watching paper clips jump across the desk to stick to our magnets!
We then watched an amazing video clip showing how magnets affect iron filings. You can watch it here. We were fascinated!
Then, we looked at how magnets are used in the real world. We discovered that electro-magnets are often used in recycling centres to sort different materials.
Finally, it was our turn for a 'Scrapheap Challenge.' Each group had a tray of different materials to sort into magnetic and non-magnetic materials. Most children predicted that the magnets would attract metals - but then some of the results turned out to be quite surprising!
Can you guess which metallic objects didn't stick to the magnets - and can you work out why?
No comments:
Post a Comment