Dover Boost "Keep the Scene Green!" Coloring book focuses on recycling, fighting pollution, other ecology-related activities and is suitable for grades 1 - 2/6 - 8 yrs. Dover Boost "Keep the Scene Green!" Coloring book by Becky J. Radtke includes word searches, secret codes, spot-the-differences, mazes and more. Book is ideal for grades 1 - 2/6 - 8 yrs and helps to teach a variety of basic skills. Age group and grade: Ages 6 - 8 years and grades 1st - 2nd. Title: Keep the Scene Green!: Earth-Friendly Activities. No. of pages: 32. Author/editor: Becky J. Radtke. Dimensions: 8 1/4" x 11". Solve the puzzles and save the world! Everyone can help preserve our planet these 24"green" activities show how. Fun-filled puzzles include word searches, secret codes, spot-the-differences, mazes, and more. Solutions included. Sold as 1 Each.