Play crosswords from The EverGreen Twins Activity Book online!
You can check your answers and even get hints if you need them (requires Java).

• Ecology Crossword Puzzle (page 12)
• Marco the Molecule Crossword Puzzle (page 79)
• Marco the Molecule Crossword Puzzle Challenge (page 80)
• Walter the Water Molecule Crossword Puzzle (page 79, 1st edition)
• Walter the Water Molecule Crossword Puzzle Challenge! (page 80, 1st edition)
• Renewable Energy Crossword Puzzle (page 130)

Download computer-based versions of the graphic organizers from the book!
You will need Kidspiration software (click here for a free trial).

• Organism Organizer (page 30)
• Eco-Friendly Character Profile (page 137)
• Sustainable Story Organizer (page 138)

Solutions to Puzzles in The EverGreen Twins Activity Book:

• Ecology Crossword Puzzle (page 12)
• Endangered and Threatened Species Word Search (page 13)
• Eco-doku Puzzle (page 14)
• More Eco-doku Puzzles (page 15)
• Eco-doku Challenge (page 16)
• Pollination Maze (page 21)
• Walter’s Water Cycle (page 78)
• Walter the Water Molecule Crossword Puzzle (page 79)
• Walter the Water Molecule Crossword Puzzle Challenge! (page 80)
• Sustainable Living Word Search + Hidden Message (page 83)
• Energy Word Search Challenge! (page 117)
• Renewable Energy Crossword Puzzle (page 130)
• Sustainability Maze (page 145)

Sample answers to other activities:

• Biomes of the World (page 31)
• Keystone Species Connections (page 33)