Help your 5th grade, middle school, or high school child build proficiency in biology with the activity-packed Mark Twain Ecology: Interactions in the Biosphere Biology Workbook! Science books are a great way for children to have a thorough understanding of ecology through focused lessons and practice. Students learn about environmental topics including acid rain, the greenhouse effect, and biomes, and will reflect on population studies through engaging lessons, research activities, and ecology projects. The 48-page science book is sized at about 8" x 11"—giving your child plenty of space to complete each exercise. Use the vocabulary study guide and unit test to track your child's progress. Designed by leading educators, Mark Twain Publishing Company specializes in providing captivating, supplemental books and resources in a wide range of subjects for middle- and upper-grade homeschool and classroom curriculum success.