One thing that we discussed in class that I hadn't heard before is that a hypothesis is a tentative explanation. I think that that's an interesting way to look at it and it makes sense. We also discussed how science is all about uncertainty and not exact answers. I found that concept to be weird because school always seems to demand exact answers from students, but uncertainty can be reduced by collaboration, which we also do a lot of in science classes.
At the end of class, we watched a video of the reading of Fish is Fish. It's a children's book about a tadpole that grows to be a frog and explores the world, then goes back to the ocean to describe it to his fish friend who has a hard time picturing the things the frog describes because he has never seen them for himself. The overall idea of listening to that book was because it represents the misconceptions that students may have, especially if they're not exposed to the topics you're talking about in class. It's much easier to understand science when you can do an experiment about the topic and see what happens with your own eyes.
This is not the exact one we watched in class, but here is a reading of Fish is Fish: