Today we were surprised with our first Secret Reader. Will's mom Robin came in a read The Jolly Postman and Other People's Letters. It was a book that none of us knew, including Miss Kylie. We highly recommend it. It was a mixture of all the fairy tales with secret envelopes hidden inside with actual letters and postcards!
Then, Will presented his Scientist of the Week experiment, which tied in perfectly with our first grade science curriculum. Will wanted to know if rocks can be magnetic. We had a couple of thoughts on the matter:
(a) Yes, rocks are magnetic.
(b) No, rocks are not magnetic.
(c) Some rocks are magnetic and some are not.
(d) Only rocks made of sand are magnetic.
(e) Yes rocks are magnetic because otherwise this experiment would not be cool...
We learned that there are three different kids of rock: igneous, sedimentary, and metamorphic. If these rocks contain iron (or the mineral hematite) then the rocks are magnetic. If they do not contain iron then the rocks are not magnetic. Some rocks have more iron than others and create a stronger magnetic attraction, while others create a weaker magnetic attraction.
Thanks Will! We learned a lot and we can't wait to study rocks in more depth this year!
You definitely spiked our interest.