Skip to content
World 2 · Read the Rings · 11 min · PRO

What rings remember

Drought, fire and eruptions

PRO · Tree & Forest Lab

World 2: Read the Rings is part of PRO

The first world of Tree & Forest Lab is free. PRO opens the other 20 lessons in 5 worlds — simulations, quizzes and all.

  • How a ring forms
  • Dendrochronology
  • Oldest living things
  • What roots do
  • Mycorrhiza
PRO includes
  • All 60 labs — every world, every lesson
  • Practice exams and certificates

$8.33/mo, billed yearly ($99.99) · or $39.99 monthly

Unlock Tree & Forest LabTry the free world
My notes
Only saved in this browserAll my notes →
← DendrochronologyOldest living things →

Report a mistake

What is wrong?
0 / 2000 · at least 10 characters
Sent along with your report
  • Page
  • About What rings remember — Tree & Forest Lab · forest/what-rings-remember
Plus your browser type. Reports go to our support system; see the privacy notice.