TY - BOOK AU - Forte, Imogene AU - Frank, Marjorie TI - Earth & space science: : inventive exercises to sharpen skills and raise achievement SN - 9781629500201 U1 - 550 PY - 2013///] CY - Chicago, IL PB - World Book KW - Earth sciences KW - Study and teaching (Middle school) N1 - Grades 6-8+ ER -