This is an anticipation guide to introduce and teach the concepts of: sink, float, buoyancy, capacity, cargo, and boat. It begins with an interactive page where kids can guess whether the items sink or float. (The items spin, flash, etc. and you can have the kids write S for sink and F for float using the pen function.) There are links in the presentation to: 1. go to a site and make a virtual boat ride the wave, and 2. learn why regular 7UP sinks and diet 7UP floats. Pictures are also included, and a video link.
You could use this either to begin a unit, to review a unit, or you could start each day with one or two of the slides. They're great for generating student conversation and scientific questions.