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Cell Size and Scale

Wednesday, January 4th, 2012 by | Filed Under: Cool Sites

Have you ever wondered how big a cell is? Or perhaps you’ve been curious as to how big a molecule of water is? Well not only does this site answer those questions, but it also depicts the size of things like that on a visual scale.

Beneath the scale you’ll find information about the different sizes of cells and why some cells are visible to the naked eye and some are only visible through a microscope’s lens.

To use the scale all you have to do is slide the grey button across the sliding bar and the image above will zoom in until you reach the tiniest representation on it – the carbon atom.

It is really neat to see these represented at scale among other items so that you can really get a grasp for how large or small they are. The scale starts with things that are visible to the naked eye like Times New Roman (a 12 point font), a coffee bean, grain of rice, sesame seed, grain of salt, and then barely visible (at least to me) an amoeba proteus.

In the top left corner of the scale is a graph that shows what size things are and gets smaller and smaller as you zoom in. It starts at 1mm and scales down to 100pm.

I think this would be a fun site to share with kids to get them interested in Science. Go check it out today


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2 Responses to “Cell Size and Scale”

  1. Mark says:

    Neither of the links works. I get “IE cannot display the page”, I also tried FireFox with the same result. I thought maybe the site was down, or very busy yesterday, that is why I tried again today, but it still doesn’t work. I tried various portions of the URL and even tried changing the way learn.genetics was spelled, nothing worked.

  2. Jane says:

    This is one of the most fascinating things I’ve EVER seen on the internet, and (of course) that’s really saying something!! I absolutely love knowing those relative sizes! It puts a few things into perspective, like how easy it is for those viruses to invade our bodies, and how glucose can raise our blood sugar so fast after ingestion. I hope all science teachers will use this site in their classrooms–I can’t imagine that any child could remain indifferent to biology after seeing this!

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