We did an exercise in chromatography. I will try to bring you pictures next session.
I brought in some sandpaper samples for microscoping. Here is what they look like (60,120,400, and 1000 grit - - click the thumbnails for the actual photo).
I also brought in this fascinating discovery but got so caught up in everything else that I forgot to show it to the class. It'll be brought in on 17 January. You can see the way it will be in a tray introducing the vocabulary of observation and inference.
2 comments:
Thanks for continuing to maintain this blog. I read much more often than I comment.
Did I understand that you made sparks in class yesterday?
Yuppers. Lots of sparks. With a typical striker like this
http://www.amazon.co.uk/Monument-Spark-Lighter-Striker-Gas/dp/B0001P0FVI
Post a Comment