Before you know it, the sun is climbing overhead. Ding Xuecheng observed that the cracks between the thick opposite leaves of the raw stone flowers tended to widen, and hurriedly called back the three of them and pointed them out. But this change was too slow, and everyone watched it for a while, quite bored, and Binbin beckoned the two little girls to visit.

There was a faint tone of politeness and nonchalance: "You say that the stone is a flower, I know everything without observing." Raw stone flower is a perennial small succulent, belongs to indoor flowers, all year round to be placed in the greenhouse maintenance, with the habit of 'growing in the cold season, high temperature dormancy in summer'. The temperature in autumn is cool, and the temperature difference between day and night is large, which is the main growth period of raw stone flowers, and it is also the flowering season of raw stone flowers, which requires sufficient sunshine. Its growth is very peculiar, every autumn after flowering the plant begins to give birth to new plants in its interior, and gradually grows, as the new plant grows, the original old plant shrinks and dries, leaving only a layer of skin, and is broken by the new plant, until finally completely sheds this layer of old skin. ”

"The common varieties of raw stone flowers are: Fulai jade, pattern jade, Japanese wheel jade, Zhu Xianyu, Mrs. Li, barren jade, etc. It is propagated by seeds or cuttings. Cuttings can only be used for a plant that naturally forms multiple heads and then produces new plants, so most propagation depends on seeds. Seeds germinate easily, but seedlings are smaller and fragile in the first year or two, and will not bloom until at least two to three years. In the autumn afternoon, the 3-4-year-old raw stone flower blooms yellow, white, and pink flowers from the middle gap of the opposite leaves, and when it blooms, the flowers cover almost the entire plant, and it is very delicate. It closes in the evening and blooms again in the afternoon the next day, and a single flower can bloom for 3-7 days. ”

"The time hasn't come yet, it's useless to wait there, hehe~"

Ding Xuecheng's face was flushed, and he muttered to himself with hatred: "I was tricked, and my belly was about to be angry!" But there is no way, who doesn't let themselves know this knowledge! No, if that's the case, why did Babe let us come over so early? There must be something unobserved! ”

So, he picked up a magnifying glass and looked at it repeatedly.

The daylight was tilting again, and it was already afternoon, and the stone flowers were about to bloom as Binbin said.

At this time, Bin Bin also came back with two girls, and the smile on the corner of his mouth, no matter how Ding Xuecheng looked at it, there was a hint of ridicule.

Everyone did not leave again, and watched the whole process of the stone flower from flowering to closing, and at this point, the observation activity ended.

Yanyan also wrote down the second observation record summarized by Ding Xuecheng:

2. Raw stone flowers produce flowers at the top of the plant, with yellow, white, pink, red, purple and other colors, and the flower diameter is about 3 cm. When flowering, the flowers cover almost the entire plant. It opens in the afternoon and closes in the evening. The flowers are brightly colored and very beautiful, and have a high ornamental value.

As soon as Yanyan finished writing, Ding Xuecheng's voice came from Beibei's head: "Scientific research must not only have a strong interest, but also superhuman patience, sometimes patience is more important than curiosity, you can understand when you go back to check Edison's story." Patience cultivation is also one of the training goals of this activity. Congratulations to Bobo, your patience is very good, and 1000 points will be awarded. ”

Ding Xuecheng was inexplicably moved: "Haha, it really has a useful intention, it's not in vain that I have been guarding by the stone platform for most of the day!" ”

"Friends, you must have thought of a lot of questions after visiting for so long, let's go back to the classroom space and carry out the next activities."

The bodies of the four of them disappeared from the flower room in a ball of light, and condensed in the classroom space.

"Babe, projection observation notes." Ding Xuecheng called Bei Bei to unfold the task light curtain.

Theme: "I am curious" about nature.

Mission: Observe the "stone" flowering; "I'll ask questions."

Panelists: Bobo, Yeonyan, Kiki, Binbin.

Observation Notes:

1. The shape of the raw stone flower is peculiar, like a colored stone, like a pebble and has life. The raw stone flower plant has gray, green, brown and other colors, and the fleshy leaves are thick, and the two pairs of leaves are connected to form an inverted cone, and there is a crack in the middle.

2. Raw stone flowers produce flowers at the top of the plant, with yellow, white, pink, red, purple and other colors, and the flower diameter is 3 cm. When flowering, the flowers cover almost the entire plant, which opens in the afternoon and closes in the evening. The flowers are brightly colored and very beautiful, and have a high ornamental value. [Attached: 1-minute fast-shot video.] 】

"Babe, play the video."

The change of Shishenghua for most of the day has been shortened to more than 1 minute, which clearly reproduces the complete process of Shishenghua from flowering to closing, vivid and intuitive, which is irreplaceable by language description, and the effect is also leveraged.

The three friends were confused by the "video", and Bin Bin questioned loudly: "Bobo, where did the video come from?" ”

"When you went to visit, I asked Bei Bei to record it."

"Can you still ask Beibei to help? You're cheating! ”

"Bei Bei agrees, otherwise you can see the process of the stone flower blooming so intuitively? I paid the price to get it, and you still don't accept it if you watch it for free, it's really unconscionable! ”

"At what cost?"

"Confidential!"

Binbin was speechless, his lips opened and closed and he couldn't hold back half a word, and his face was flushed.

Ding Xuecheng now knows how cool it is to spit out the word "confidential", no wonder Bei Bei used "confidentiality" to deal with him at a critical moment, isn't he also as depressed as Binbin!

"Things often change over a long period of time, and using a fast camera to observe the change time will greatly 'shorten' the change time, which is vivid and intuitive, and is a common means of observing the growth of plants. Congratulations to Bobo, the video works very well, and 100 points will be awarded. ”

"Haha, there are points rewards, I earned 95 points, the more the merrier~"

Ding Xuecheng looked around and said loudly, "Let's start asking questions." ”

Kiki was the first to jump out: "I'll come first, I've been thinking about these questions today: What is curiosity?" What does it have to do with learning science? What is the relationship between things in nature and things in everyday life? Why is there thunder and lightning in the sky? Where does the rain come from? How is the wind formed? ”

"I also have a lot of questions: Do caterpillars have eyes? Why do we smell flowers? Why are there no trees in the grassland? How do mushrooms grow? Yanyan said glutinously.

The corners of Binbin's mouth twitched, but it seemed that the fat was fluctuating: "My question is about animals: why did the kitten fall from a height and be unharmed?" Why can geckos crawl on smooth walls? Why do chameleons change color? Why can we hear bees but not butterflies? ”

Ding Xuecheng couldn't help laughing and said confidently: "Curiosity is a strong desire to explore new things. The French writer François once said: Curiosity makes scientists and poets. Scientists have had a strong curiosity since childhood, so Luban observed blades of grass and invented saws; The Wright brothers observed flying birds and invented airplanes; Edison had a strong curiosity from an early age and became an inventor when he grew up; Morgan observed the genetic variation in Drosophila and discovered the XY chromosome in the cell. ”

"Congratulations to Bobo, your explanation of curiosity is very accurate, and the examples you give are also very reasonable, and you will be rewarded with 100 points."

The two little girls were shocked by Ding Xuecheng's words again, and there were also signs of small stars emerging in the two pairs of big eyes, and Binbin immediately shouted: "You haven't said your problem yet!" ”

"My question is: What are scientists curious about? What questions have been raised? Why do birds fly in the sky? How many legs does a dragonfly have? When can I see a rainbow? ”

Ding Xuecheng saw that everyone was thinking, so he asked Beibei, "Beibei, do we need to answer the questions we asked?" ”

"You don't have to answer now, you just know how to ask valuable questions."