standards, covering all aspects of seventh grade science education. This workbook for children ages 12 to 13 includes exercises that reinforce science skills across the different science areas. Science skills include: • Scientific Tools • Chemical vs. Physical Change • Ecosystems • Rock Cycle • Biotechnology • Natural Hazards • Science History Our best-selling Spectrum Science series features age-appropriate workbooks for grade 3 to grade 8. Developed with the latest standards-based teaching methods that provide targeted practice in science fundamentals to ensure successful learning!

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