▁▂▃▄▅▆▇ Infiltration ▇▆▅▄▃▂▁

Haha~hello,05!! ❤

This is our first half-hour period of geo lessons. Last lesson we discussed about how water is important and essential in our life and the drainage basins. And this lesson was started with an experiment. Our class was divided into 5 groups and each group got a cup of soil and an empty cup with a drawn line on it. We poured the water into the empty cup until it reached the drawn line every time and poured the water into the cup of soil slowly, observed how water flowed inside the soil carefully. We were supposed to see the water flowed slower and slower until a layer of water was formed on the surface of soil. But in our class, all groups except our group said they saw the water flowed faster and faster. Miss Tang said it might due to some other reasons like the speed we poured the water into the soil. ☻

From this experiment we did, we could guess what will affect the rate at which water soaks into the soil which is called the infiltration capacity or infiltration rate. We deduced some factors of it, for instance, the presence of rock, the amount of water in soil, how compact the soil is, the permeability of soil and the presence of vegetation (the roots will increase the rate of infiltration). And sometimes if the amount of water received by soil exceeds the infiltration capacity of soil, it will lead a collection of water on the surface which is also can be called overland flow. Because of the limit of time, we did not learn it very concretely and I think Miss Tang will teach us more specifically to let us understand it better during next lesson. ☺

Yay, I think that’s all we have learnt in this lesson.

JIA YOU PEOPLE!!! :) :) :) :) :) :) :) :) :) :) :)

-Liu Fan- ❤