Tundra and Polar Regions
Polar regions are cold, dry and covered with ice or permafrost.
About this topic
Polar regions have extremely cold climates, with winter temperatures far below freezing and very little precipitation, so many count as deserts. The Arctic tundra has permafrost (permanently frozen soil), low shrubs, mosses and lichens, short summers and long dark winters, and animals like caribou, polar bears and Arctic foxes. Trees cannot grow because roots cannot penetrate frozen ground and the growing season is too short.
Antarctica is a frozen continent with an ice sheet up to 4 km thick, holding about 70% of Earth's fresh water. Unlike the Arctic, which is an ocean surrounded by land, Antarctica is land surrounded by ocean, and it is colder and has no native human population, only scientists. Penguins, seals and krill-based food webs thrive along the coast. In summer the sun may not set for weeks, while in winter it may not rise.
The fragile ecosystems recover slowly from damage: a footprint in tundra moss can last for years. Climate change is causing melting ice and thawing permafrost, releasing methane, a strong greenhouse gas, and endangering Arctic communities and animals that rely on sea ice. Melting land ice raises sea level, but melting floating sea ice does not, which is a common point of confusion. The Antarctic Treaty protects the continent for science and peace.
Key ideas
- Permafrost
- Midnight sun and polar night
- Climate change melts ice
Quick check
Use cases: where Tundra and Polar Regions helps
- Homework: review the key idea behind Tundra and Polar Regions before you start a problem set.
- Exam revision: use the quick check to test whether you can recall Tundra and Polar Regions without notes.
- Visual learning: play with the interactive lab to see how Tundra and Polar Regions changes when you adjust its inputs.
- Teaching a friend: explain Tundra and Polar Regions in your own words, then compare your version with the key ideas.
Geography helps with city planning, climate, trade and migration.
Frequently asked questions
What is Tundra and Polar Regions?
Polar regions are cold, dry and covered with ice or permafrost.
What will I learn in Tundra and Polar Regions?
Permafrost. Midnight sun and polar night. Climate change melts ice.
Is Tundra and Polar Regions part of Geography?
Yes. It is one of 40 Geography topics on LearnViz HighSchoolEdu, with 3 key ideas, a live animation and a quick check.
Does the Tundra and Polar Regions lab work on a phone or tablet?
Yes. The animation resizes to fit your screen and supports touch, so you can drag, tap and slide with your finger.
How should I study Tundra and Polar Regions?
Read the summary and key ideas first, play with the interactive lab to see the idea in motion, then answer the quick check. If you get a question wrong, go back to the key idea it tests.
Do I need an account, and is my progress saved?
No account is needed. Marking a topic as learned is saved in your own browser, so it stays on that device and is not sent to a server.