I am doing a science fair with 4th grade. They are doing their experiments at home. They have to learn how to record observations this week... we did a sample experiment together that I've been modeling along with for the past few weeks. I'm stuck on how I can show them the different methods that they can record their data with in 30 minutes. I want them to know that they can put it in a table, chart, graph, pictures, etc.. and have to choose which one will be best for their own experiment. Any fun way to do this?

I was thinking of making cards with 3 sample experiments on them and then making them figure out what the best way to record and present the data from that experiment would be.

Anything more creative? TIA!!!