GIF animations

I know it might seem a bit old but gifs are a very quick and easy way to make small data sized moving images like so:

 

This one was made with the first gif creator I came across (gickr.com) and is only 156k of data. I took 4 photos with my camera and uploaded them and the site created this gif using those photos.

and this one used a different webtool called imgflip.com using a YouTube clip

And because they are based on images they can be uploaded like a photo.

Imagine students making small videos of the photo's they have taken of a seed they planted and show show how the seed grew in an image that they can share on their blog/website/wiki. and then have it as a part of a presentation of their findings in a PowerPoint.