World 7 · Landscape Detective · 10 min · PRO
River or glacier? Reading valleys
Cross-sections, floors, side valleys and the things left behind
PRO · Landscape Lab
World 7: Landscape Detective is part of PRO
The first world of Landscape Lab is free. PRO opens the other 21 lessons in 6 worlds — simulations, quizzes and all.
PRO includes
- All 60 labs — every world, every lesson
- Practice exams and certificates
$8.33/mo, billed yearly ($99.99) · or $39.99 monthly