Today we took three rocks that they found while hiking over the weekend, put them in individual glass bowls, and poured vinegar over them. J-Baby thought he had found limestone but T-Guy insisted it wasn't, hence putting it to the acid test. Limestone is so alkaline that it reacts with the acidic vinegar and bubbles away. Sure enough, we have one bubbling rock and two that aren't (quartz and granite).
We bought a new Lego book second hand, LEGO MINDSTORMS NXT: The Mayan Adventure (Technology in Action). Papa opened the package and left the book on the big desk in the family/learning room, and by the time I got up this morning T-Guy had read the first two chapters and was ready to start building.
I need this week off to orchestrate Thanksgiving and to plan our next block, Local Geography. I feel quite prepared to do this in terms of knowing our local geography, but need to do some reading as to how to approach it artistically.