Scientists divide the world into large natural areas called biomes. Desert and rainforest biomes are two that you’ve probably heard of. Each biome is known for certain kinds of plants and animals. But what’s really at the heart of a biome is its climate. How hot or cold is it? How much rain and snow fall every year?
Climate is critical because it determines the types of plants and animals—the ecosystem—that can survive in a biome. Polar bears can’t live in the Sahara Desert. Rain forest trees won’t grow in grasslands or the arctic tundra.
9 Topics in this unit
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Taigas
The taiga is the world’s biggest biome.
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Tropical Savannas
Tropical savannas are vast grasslands dotted with trees that spread across Africa, norther ...
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Temperate Grasslands
Temperate grasslands include the prairie in North America and the steppes of Europe and As ...
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Desert Lands
The desert is the driest biome.
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An Introduction to Biomes
Scientists divide the world into large natural areas called biomes.
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Tundras
It is crazy cold in the Arctic tundra.
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Temperate Deciduous Forests
This biome is defined by its four distinct seasons and its forests of trees that drop thei ...
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Mediterranean
This is one of the world’s smallest biomes, occurring on the west coast of the Unite ...
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Tropical Rain Forests
Located in a belt around the equator, rain forests are a riot of life, with plants growing ...
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