Can i use my samsung galaxy s3's sim card on an iphone 4s?

I was just wondering if i could open the back of my iphone 4s and slide my sim card in there and use it wihout having to go to the store or anything. Also would i be able to make regular calls/texts/and use data just like my s3 without any extra charges?

IF the 4s in question has a spot for a SIM card, it's on the side. Iphones never open from the back, unless you want to break it.
AT&T and tmobile are the only ones that use a sim. Verizon and sprint don't. (neither does virgin mobile; not sure about cricket or boost)

From what I've heard, the SIM cards got galaxy phones were made specifically for th phones, but I'm not entirely sure. I know this is the case with the galaxy s4, but I'm not 100% on the s3.

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