Temperate Rainforests

Activities to try

1. 1

   Map the world's rainforests — and overturn an assumption

   Why it works: A rainforest is defined by rainfall and humidity, not by heat or latitude, so cool wet coasts far from the Equator can hold genuine rainforest.

   1. Start with the expectation that rainforests cluster near the steamy Equator, then examine a world map that also marks temperate-rainforest regions: the Pacific Northwest, western Scotland and Wales, southern Chile, and New Zealand.
   2. For each marked region, reveal its climate (cool and very wet) and its signature species — moss-draped giant conifers such as Sitka spruce and western red cedar in the Pacific Northwest (with giant coast redwoods at the southern end, in northern California), tree ferns in New Zealand, moss- and lichen-draped oaks in western Britain.
   3. Pause on the western Scotland/Wales (and Cornwall) hotspot: Britain retains rare, threatened fragments of Atlantic/Celtic rainforest.
   4. State in your own words what all these places share despite being far from the Equator (persistent high rainfall and humidity).
2. 2

   Sort it: tropical, temperate, or both

   Why it works: Temperate and tropical rainforests share structure and the rainfall criterion but differ in temperature and species communities — they are not identical.

   1. Sort a set of features and organisms into three groups: 'tropical only', 'temperate only', or 'both'.
   2. Place shared features in 'both': very high rainfall, dense wet canopy, constant humidity.
   3. Place the clearly distinguishing items correctly: hot climate, kapok trees, hyper-diverse multi-layered canopy (tropical); cooler climate, ancient oaks, giant redwoods (temperate). Put tree ferns, orchids, climbing vines (lianas) and moss-draped trees in 'both' or discuss them rather than scoring them: tree ferns grow in many tropical rainforests as well as New Zealand, orchids and vines also grow in some temperate rainforests (e.g. New Zealand, Chile), and moss-draped trees are a feature shared by both types, though thick moss and lichen are especially typical of temperate ones.
   4. After sorting, discuss a broad pattern (not a scored sort item): temperate rainforests usually have fewer tree species than tropical ones — treat this as a general tendency rather than a fixed rule.
   5. Explain each 'both' placement by naming the feature all rainforests share.
3. 3

   Judge a borderline case and say why

   Why it works: Applying the rainfall criterion lets you judge new or borderline cases: a cool wet coast can be rainforest, while a hot place with a long dry season is usually classed as dry forest or savanna rather than rainforest.

   1. Respond to the prompt: 'Someone says there is real rainforest in cool, rainy places like western Scotland and Wales, and along the coast of Canada and Chile — nowhere near the Equator. Could that be true? Tell me WHY.'
   2. Then tackle a trickier case: 'What if a place is hot but has a long dry season every year — would you usually call it a rainforest? Why or why not?'
   3. Write an explanation that names persistent high rainfall and humidity (not heat) as the defining criterion, names at least two real temperate examples, and states one way a temperate rainforest differs from a tropical one.
   4. Discuss why temperate rainforests are rare worldwide, why they are often found on coasts facing wet winds from the ocean (western coasts in most of these examples), and why places like Britain now have only small fragments left.