Zhu Lang and Bei Bei exchanged a few words, turned their heads, and found that Binbin was squatting on the ground looking at something with a magnifying glass, and the two beautiful girls were still chattering on the side.

Zhu Lang walked over and said curiously, "Binbin, what are you looking at with a magnifying glass?" ”

"Snails. This is not a quest item. ”

Zhu Lang asked again: "The cave snail should be underground, right?" What are you guys discussing? ”

Kiki replied sideways, "We're talking about whether snails have eyes and mouths. I said no, Yeon-yeon said yes, Binbin couldn't say clearly. You tell me? ”

Zhu Lang smiled: "I've read the information on this, snails have eyes and mouths. ”

"Ah, where is it? We haven't found it for so long with the naked eye, and Binbin is looking for it with a magnifying glass! Yeon-yeon is excited that she has finally found an ally.

Zhu Lang's advance preparation was not in vain, and he happened to have read the information in this regard. "The snail has a fragile, low-conical shell; The head has two pairs of antennae, and the last pair of longer antennae has eyes at the apex; The ventral surface has flat, wide gastropods that move slowly, secrete mucus under the feet, reduce friction to help walking, and mucus can also prevent ants and other general insects. Snails generally live in relatively humid places, hiding from direct sunlight in the vegetation. Snails that live in cold regions hibernate and species that live in the tropics also dormant during the dry season, and the mucus secreted during dormancy forms a dry membrane to close the shell opening, and hides the whole body in the shell, and when the temperature and humidity are right, they will come out to move. Snails are the animals with the most teeth in the world. Although its mouth is about the size of a needle, it has more than 26,000 teeth. A little down in the middle of the snail's small antennae is its mouth, which has a jagged tongue that scientists call a 'toothed tongue'. ”

Kiki glared at Meimu and shouted, "It really has a mouth and so many teeth!" Ah, eyes on antennae! Binbin, look for it! You read it and show us~"

Although Zhu Lang checked the information and learned that the snail had a strange mouth and eyes, he had never seen it, so the three of them were impatient to wait for the magnifying glass.

"There really are eyes, on the long antennae at the back; There's a small hole in the middle of the short antennae, is that its mouth? I think I really have teeth! Bin Bin exclaimed.

"Quick, quick, show me!" The two beautiful girls next to him shouted in unison.

So, the four of them took turns to observe with a magnifying glass for a long time.

"Yeon-yeon, you record our observations, and we'll add them together. I'll answer the questions later. ”

"yes, okay."

"Bebe, show the active task."

The light curtain popped up above Beibei's head, and the question appeared: [Activity 1] What is the difference between observing with a magnifying glass and observing with the naked eye?

"When we look at relatively small objects, we may not be able to see clearly with the naked eye, so we can use tools like a magnifying glass to help us observe. A magnifying glass magnifies details and allows you to see objects larger and clearer. ”

"If you answer correctly, you will be rewarded with 100 team points."

After answering the question, Zhu Lang proposed, "Let's go find the flowers and observe." Keep an eye out for holes in the ground, preferably if there are snails on the sides. Do you know what a cave snail looks like? ”

Yeon-yeon raised her hand and smiled: "Hehe~ I know." Cave snails are transparent and colorless, and since there is no light coming into the cave, they gradually evolve and lose their ability to see. This ghostly snail lives deep in a cave and is not to be found on the ground; The underground is also not easy to find, as it is colorless and transparent, and does not emit light. You can touch it with your hands. ”

"Huh? Hand Touch...... I'm afraid! "I can't see it if it doesn't shine, how can I find it?"

Zhu Lang was also dumbfounded, and said bitterly: "It's troublesome this time...... Well? Nianzhi ~ It's easy to talk about finding the cave! ”

So, with confidence, he cried out, "Go, I have a way, see me then!" ”

"How many flowers are there over there, what are those two plants that have red flowers?" Kiki ran to the flowers as she screamed, and everyone followed.

"This is a gerbera, that's a hibiscus flower." Zhu Lang did his homework in advance and replied without hesitation.

Bin Bin pouted and said, "No, that's Wu Ju and Hibiscus Flower." With that, he took a magnifying glass and went up to observe.

Zhu Lang was overjoyed, and said secretly: "It turns out that the gerbera here is called Wu Ju, and the hibiscus flower is called the hibiscus flower. Now just find the cave. ”

Bent down to observe the flowers at a half-human height, one of the petals of the gerbera was burned into a hole the size of a pin's eye because the magnifying glass was raised too high, and the mirror was facing the sun.

Kiki got closer, was startled, and screamed, "Wow, that's amazing, what's wrong?" ”

Zhu Lang happened to have this experience, and immediately answered: "In addition to the main function of the magnifying glass, it is to magnify the image of the object; There is also a secondary function, which can focus light and have the effect of focusing on fire. ”

Yeon-yeon also leaned over and asked, "Can you still make a fire?" ”

"Yes, when surviving in the wild, in the absence of modern fire-making equipment, you can only drill wood to make fire or concentrate light to make fire. A magnifying glass is one of them, and water can also be used to make a fire by putting water in a plastic bottle or bag and making it into a shape with a thick middle and thin edges. "Zhu Lang spoke vividly, much more vivid and interesting than the 'academic report' of 'Sour Wood Man'.

"Really, it's so practical, if we encounter that situation, we will follow you closely, have a fire to keep warm, and eat cooked food, well, and fend off the beasts!" The two girls' eyes were shining with stars, and they seemed to be fascinated.

Zhu Lang said secretly: "Made." I was almost scared to pee! You thought it was an outing? It's still very yearning, unreasonable! ”

Binbin finally found an opportunity to speak, and also joined the discussion: "The magnifying glass is composed of a mirror handle and a lens, the lens is a convex lens, the middle is thick and the edge is thin, the common materials for making lenses are glass, what he just said is water lenses, similar ice lenses, and a small number of gemstones, crystals, etc. The combination of two magnifying glasses can increase the magnification of an object, and telescopes and microscopes are made on this principle. ”

"You boys know a lot!" The two girls did not hesitate to praise.

"Yeon-yeon, it's better to have a picture of the observation record. You have a high level of painting, first observe with the naked eye, and draw the flowers of gerbera ~ oh, witch chrysanthemum. Zhu Lang commanded in a low voice.

"Well, okay. However, I can only draw the appearance of the flower, such as the corolla, calyx, receptacle, stamen, etc., and I can't draw the details of the stamen, the pollen, and the lines on the petals. ”

"Add a magnifying image where the drawing is not clear, you look at it with a magnifying glass, and then draw that part of the detail in the magnifying image. We look at the comparison and add as we go. ”

Kiki chimed in, "Yes, yes! It's a good idea! ”

So, the three of them described and supplemented while observing, and Yanyan drew the figure of Wu Ju in a while, and also drew a few enlarged pictures of petals and stamens next to it, which were very clear and detailed.

Then I went to look at the hibiscus flower (hibiscus flower) and drew the hibiscus flower in the same way. The middle of the petals of the flower resembles a beautiful woman's eyelashes, and it also resembles a phoenix crown, which is probably why it is called 'hibiscus flower'.

Each flower is also accompanied by a caption next to the figure.

"Bebe, show the active task."

The light curtain is unfolded, and the problem is revealed: [Activity 2] Try to observe an object with a magnifying glass, and record while observing.

Chrysanthemum: apical inflorescence with large flowers, 6-10 cm in diameter when the petals are unfolded; bracts bell-shaped, bracts 2-layered, pubescent on the back, oblong-lanceolate on the inner layer, apex caudally pointed; Receptacle flattened, bare, honeycomb; The outer female flowers are 2 layers, the outer corolla is tongue-shaped, the tongue is pale red to purplish-red, or white and yellow, oblong. The flowers are rich in colors, including red, white, yellow, orange, purple, etc.

Hibiscus flowers: large flowers, solitary leaf axils, diameter 5~8 cm, single or double petals, white, pink, purple and other colors, sometimes red or purple at the base of the petals. The flowers are irregularly shaped, obtuse at the base, short stalks, and the bracts are rounded. calyx grayish-green, lobes retracted or recoiled; There are fine hairs on the outside of the flower stalk, bracts, and calyx; petals 10, wrinkled, pale yellow or pale purplish-blue, obovate, densely pubescent at base; The stamens are synthesized to form a stamen, and the anthers are numerous, purple-black. The breath is slight and the taste is light.

"The answer is basically complete, the picture is clear, observe the snail, witch chrysanthemum, hibiscus flower and draw pictures, and reward 500 team points."