Traditional Culture Encyclopedia - Weather inquiry - A 350-word essay on the secret of nature’s little swallow
A 350-word essay on the secret of nature’s little swallow
The secret of the little swallows
When spring comes, the little swallows will fly back to the north from the south.
When I am at home, I often raise my head and see a few little swallows
flying around above my head, chirping leisurely
. That's because my grandma planted a pomegranate tree
There was a little swallow's nest on the pomegranate tree.
The shape of the little swallow is very special, its back is black, like
it is wearing a black cloak, its belly is white; its tail
ba Like a pair of black scissors; it flies around the big tree, and it looks like a pruner pruning the leaves of the big tree!
It used to be flying high in the sky, but now
Why is it flying so low? And I found that every time it is muggy
when swallows fly low, it will rain heavily soon. I feel
very curious, why does it rain when swallows fly low
? I seem to have heard the proverb from my grandfather that swallows fly low and snakes pass by, and heavy rain is coming soon.
So I found out from popular science books that the humidity in the air
before it rains is greater, making the wings of insects
wetter.
p>As a result, the flight of the insects that are swallows' food is greatly affected
and they can only fly close to the ground. Therefore, swallows
also reduce their flying ability. height, looking for their own food close to the ground. And when it's about to rain, the airflow in the air is turbulent. Affected by the airflow, swallows always fly up and down, high and low. So
The swallows are flying low, and it is going to rain.
I found out in popular science books why swallows fly low before it rains
I also found out a lot! For example, why do ants move when it rains?
Through this discovery,
I understand: If we can carefully observe
the things around us in life, we will discover many mysteries, which will be great.
It’s so amazing!
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