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I know I could google it, but…

Grace was just sticking things to the magnetic knife board, and asked me why an iron tablet wouldn’t stick (yeah, don’t even ask where she got hold of an iron tablet :( ). Anyway, I have no idea - thought it was a really good question. Anyone know the answer?

Angie

http://www.etsy.com/shop/WashedUpFamily Sea Glass Jewellery from the beautiful South Coast[/color]

http://washedupfamily.blogspot.co.uk/

http://www.etsy.com/shop/NannieCool , http://nanniecool.yolasite.com Nannie Cool - for beautiful slings, playsilks, toys, nappy wraps and accessories made by Grace’s Nannie. All designs are “Approved by Grace”

http://bournemouthattachmentparents.blogspot.com/

no idea either but saw or heard somewhere many moons ago that if you crushed an iron fortified cerial,think they used weetabix?and pass a magnet over it you get a residue on the magnet(iron?),dont know if it works,never tried it,but if she has a magnet to hand…..... wink x

LETS no42

because your magnet isn’t strong enough.
Iron tablets are magnetic, but not to the naked eye so to speak or you’d need a mighty strong iron tablet.

Ahh, we have some super super strong magnets my husband uses for magic (as in, keep this in a sealed wooden box, if it comes into contact with metal you will *never* be able to move it!). We will give it a go with one of them!

And we’ll try the weetabix trick!

Thank you!

Angie

http://www.etsy.com/shop/WashedUpFamily Sea Glass Jewellery from the beautiful South Coast[/color]

http://washedupfamily.blogspot.co.uk/

http://www.etsy.com/shop/NannieCool , http://nanniecool.yolasite.com Nannie Cool - for beautiful slings, playsilks, toys, nappy wraps and accessories made by Grace’s Nannie. All designs are “Approved by Grace”

http://bournemouthattachmentparents.blogspot.com/

lol only stopped by for a soup recipe….

ok, I’ll try to give a simple explanation of how magnetism works. I don’t know how much Grace knows already. Shout if you want me to simplify further or clarify. I’m trying to remember how old she is-5 or so?

Iron is made of atoms. Atoms are kind of like a universe: they have electrons, which are a bit like their planets, going around their nucleus, which is a bit like a sun, in the middle.

Think of electrons as like little magnets. When they are opposite each other in their orbit, they cancel each other out. But if there is an electron without another in its orbit to cancel it out, it can be a bit magnetic. One side has more magnetism than the other so its not all being cancelled out.

For some materials, you can make all their electrons line up permanently so that their electrons are always on the same side, they don’t cancel each other out, and you always have a strong magnet. (basically, you zap the metal with electricity). For this to work, your atom needs to have the electrons in certain orbits, and only a few metals have this, with iron being the main one.

This is extraordinarily hard to explain without drawing it! I’m not sure how clear this is, but let me know if I can make anything clearer. If you wanted to google this further, the particular type of strong, permanent magnetism in iron is called ferromagnetism.

hth x

ETA oh hang on I might have misread the question. Is she saying, why doesn’t iron stick to a magnet, not how do magnets work? I’ve never heard of a non-magnetic iron before, the only thing I can think of is that it might have been weakly magnetised in the past and be repelling (you can test that-flip it over and see if it attracts the magnet on the other side).

Not all iron is magnetic, it needs to be magnetised (which is when you make the electrons line up) first.

As to why? Why does this magnetic force exist? We don’t know. Its one of the universe’s mysteries.

ETA2: Hang on you mean a little iron tablet? Like what you eat? Sorry, totally misunderstood. There are two possibilities, I don’t know which is right. Either, the iron is just in too low quantities/too mixed up to notice an effect. There probably will be an effect, just not on you’d notice. Or, the iron is in a compound, ie attached to another substance, which cancels out the effect. I think its fairly common to deliver supplements in a form for the body to break them down, so for it possibly not to be pure iron you have there.

Sorry for getting the question wrong! Let me know if I can explain more clearly, I’m only half awake here.

Edith - I love you! That whole post was amazing smile

Becks - 08 October 2013 06:13 AM

Edith - I love you! That whole post was amazing smile

Ditto!!!

Just to add, the iron in an iron tablet is probably incredibly weak, otherwise think of all the xray machines and stuff that’d go crazy at airports with the people on iron supplements walking through them!

It’s just because it’s a really low concentrate as far I as I remember and you’d need a laboratory strength magnet to see any attraction of the tablet’s dust particles!

However, it’d be worth crushing one and running a super strong magnet over it to see if you can attract any particles! Oh and then uploading a picture!

EDITH!!!!!!!!  I have missed you!

Edith, that’s an amazing reply! Yes, it’s an iron tablet that my 4 year old was playing with and trying to stick to a magnetic surface (bad mummy!). I think we will have a go crushing it up and trying a stronger magnet - and give the weetabix trick a go too!

Thanks everyone!

Angie

http://www.etsy.com/shop/WashedUpFamily Sea Glass Jewellery from the beautiful South Coast[/color]

http://washedupfamily.blogspot.co.uk/

http://www.etsy.com/shop/NannieCool , http://nanniecool.yolasite.com Nannie Cool - for beautiful slings, playsilks, toys, nappy wraps and accessories made by Grace’s Nannie. All designs are “Approved by Grace”

http://bournemouthattachmentparents.blogspot.com/

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