I'm pretty proud that we do a LOT of hands-on labs in my class. Like at least twice a week with chemicals and interesting materials or building cool things. They're pretty intensive and sometimes expensive. Today however, I was cheap, and slightly lazy, and the main activity was modeling polymers with paper clips... The kids went wild. All they were doing was connecting paper clips into different types of chains, and it was like they'd never seen office supplies before. Some kids said it was the best 'lab' they've done. So I've determined that kids are basically cats. You can buy an expensive bed for a cat, but it's going to enjoy the box it came in more than the bed.