I bought the new science CD by They Might be Giants and its awesome in a nerdy science teacher sort of way.
The first song, titled Put it to the Test! walks the kids through the scientific method. It was perfect background music for today's lab.
We are studying light dealing with the property of reflection today. My students deemed this "the best lab ever!". Mostly because they got to use mirrors to change and distort their images.
These are a few shots of constructivist, discovery learning.
(Excuse me, I had to use my teacher jargon there!)