Weather in Hubei 2006

On Sunday afternoon, it was very sultry. I walked into the yard and fiddled with my father's "baby flowers and plants". Suddenly, I saw a snail slowly climb up the leaf. "Are snails pests or beneficial insects?" "Why does it always leave a long line where it passes?" "Where are its nose and eyes?" A series of question marks came to mind.

I ran into the room and asked my father who was reading the newspaper. Father smiled and said, "since you want to know the secret of snails, why don't you experiment yourself?" "Yes! Why didn't I think of that! " So I decided to try it myself.

"Are snails pests or beneficial insects?" First, I test snails by "testing turtles with various foods". I first picked up cabbage leaves, steamed bread, small mosquitoes, and then caught several snails, numbered them separately and put them in front of these foods. Probably, they were all hungry and crawled to their favorite food, but each snail chose cabbage leaves and chewed them, but they didn't smell other foods. Soon, the leaves of cabbage were eaten up. Now, I have come to a preliminary conclusion that snails are pests.

Then I conducted a second experiment to analyze why snails leave a long line when they crawl. I caught the snail high. When its head stuck out of its shell, I tried to catch its body, but before my hand touched the snail, its head retracted again. I think this snail is really a "coward!" "I tried several times in a row and didn't succeed. I am really depressed. At this time, my father came over and said, "I was discouraged at the beginning and wanted to be a scientist when I grew up!" " "I was excited by my father. Suddenly, an idea flashed through my mind again. "Yes, yes!" I am dancing with joy. I carefully cracked the snail's shell with a sharp stone, pulled out the snail's body and touched its bottom with my hand. I only feel some sticky, faint little things. What is this? I found the answer after consulting books. It turns out that the little thing is its feet, and the sticky thing is snail excrement, which helps snails crawl.

Finally, I want to see where the eyes and nose of the snail are. I put a cabbage leaf in front of a snail, only to see that the snail touched it with a pair of longer tentacles, then touched it with another pair of shorter tentacles below, and then gulped it down. I think: probably one pair is eyes and the other is nose. But which pair are eyes and which pair are noses? I took another leaf and another cabbage leaf of the same size and put it in front of another snail. Because the difference is not very big, snail's eyes are useless! I saw it touching with a small tentacle, and I knew which one was a cabbage leaf and which one was a leaf. Now, I have discovered another secret: the big tentacle has the function of eyes, and the small tentacle has the function of nose.

Through this series of experiments, it is really rewarding! I not only discovered the secret of snails, but also understood a truth: If you want to make inventions when you grow up, you must cultivate the ability to find problems and learn to solve them from an early age.