This picture on the top is a mind-map of the tundra. I used BrainPop to make the mind-map and also used it to research what is tundra. I have one example, and many facts about the different types of tundra. There are three types of tundra on Earth. The Arctic tundra, Antarctic tundra and the Alpine tundra.
First, the Arctic tundra is a cold desert formed 10,000 years ago when it was the ice age. Glaciers covered most of the North America, and when the Earth got hotter by the sun, glaciers backed away leaving the flattened tundra. It is on the top of North pole where there is Greenland, Alaska, Canada, Europe and Russia. There is no trees so it is a flat land. Tundra in Russian means treeless plain. This depends on where you are in the Arctic tundra,
Temperatures vary, but it is usually cold all the time. At winter, the average temperature is below zero and, it can go to minus 90s. In the summer, you will mostly not find the temperature above 50 degrees. When the temperature goes up, the snow melts and turns into water pools and the ground gets very spongy. With the water, these plants like bushes, grass and flowers grow. Under the spongy ground, it is permafrost that is cold and frozen all year around. But in these weathers, many kind of animal still make home.
The Antarctic tundra is the same thing as the Arctic tundra but instead of flowers and bushes, they grow Lichens, mosses and and algae.
The Alpine tundra is everywhere around, not like the Arctic and Antarctic tundra. You can find it on top of mountains above the tree line. In the Alpine tundra, the weather is very harsh, it has heavy snowfall and high, strong winds. But still in these conditions and the weather, animals and plants still survive.
The tundra is also connected the environment. Tracks made by transportation like cars, trucks and buses can be there for 30 years or more. These means every tundra is very fragile.