Rust On Nails (Immersion)

Rust On Nails

In Nicole's immersion we did an experiment on rust to see which nail would rust faster. We had two glasses of water. In one glass we put normal tap water, and in the other we put water with salt in it. We then put one nail in each glass of water. I made a hypothesis that the nail in the tap water would rust faster because rain is water with no salt, and one time I left my scooter in the rain and it rusted. Over around two weeks we looked at the nails and I wrote down on  a scale of one to ten how rusty each one was. For a long time, the one in tap water was more rusty, but in the end it was the one in salty water that had more rust in the least amount of time. So now I know that salt makes things rust faster. 

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