How I teach science (or: How I really screw up when I teach it)

I won't lie to you. I teach science in the most horrible, convoluted way. I overload my kids- taking 37 years of knowledge on a topic, and raining it down on them in 30 minute segments. I use multimedia (documentaries, short video clips, or slideshows I've created). I am excited about the topic, I talk breathlessly.

Wikipedia image by Misc. CC BY SA 2.0

Oh, I'm not ALWAYS that bad. Occasionally I download a 'grade appropriate' topic or unit from somewhere. These are... slips, though. I rely on them when the topic is a bit too simplistic and I can't think of anything overly exciting to add to what's already out there. So what effect does this... total immersion in a topic have on my kids, you might be wondering? And how does that compare against my 'slip-ups' when I rely on much more age-appropriate material?