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Grades 7-12. Julianne B. Bochenski. 2003. 228 pages...
Grades 8—12. Theodore Gray. 2009. 240 pages. Stunnin..
Philip R. Reilly. 2008. 300 pages. Paperback. The au..
Grades 9-12. Dissect the secrets of plant and animal..
Bobbie Kalman. 1998. 32 pages. The earth has more th..
Grades K -3. Melissa Stewart. 2009. 32 pages each. W..
The complete manual containing background informatio..