We are in the middle of our Earth Materials unit in 4th grade, so this presentation on calcite is perfect for my 4th graders right now.
I enjoyed making it, mainly because I have never used SlideRocketbefore and I really love the interactive nature of it. I need to explore it more to really find out how this presentation application can help me in the classroom.

I have a couple of slides with audio, so make sure you have your speakers turned on.