This is a SUPER find at the thrift store for me, last year. It is "More Fun with Nature" take along guide. I got it for ONLY $1.40! yeah!
But at Amazon.com---its only $12.37 and I find that an awesome price. It is chock full of great info and my kids absolutely love it. So, keep that in mind for Christmas gifts! :) The other book, the first one, "Fun with Nature" is also a great one and I also find it at the thrift for the same low price of $1.40. We have used them weekly and for all ages.
Remember using egg cartons to hold your rocks when you were younger? Yeah, me too. So, I passed along the tradition. Just imagine that we use 4 dozen eggs a week in our household and just imagine all them filled up with diff. rocks! Yup, each kido I think has a few. I guess one can never have too many rocks or too many egg cartons...
Rock Happy! :)
God bless your night,