Intermediate Big Books - (NW Wichita in Wichita, KS

I retired from teaching and am selling my personal collection.
This is a listing of 4 big books: Earth in Danger, Animal Acrobats, Body Facts, and Simon Says.
Simon Says gives a true or false statement about a science fact. Then the next page tells you why it is true or false. I had students use this as a pattern to make up facts of true or false