Science Trivia Sketches 1. Drawings for Science and Technology Handbook {Primary School Students}
Science and Technology Trivia Plugs Trivia Why do most household appliances, such as fans, washing machines and refrigerators, use three-wire plugs? What is the difference between a three-wire plug and a three-phase plug? Three-phase appliances refer to three different fire wire, the voltage between each of their two wires is 380 volts, generally used for power systems, mostly in industrial electricity.
And household appliances are generally powered by single-phase power supply, its three wires are fire, zero (neutral) and ground, the voltage between the fire and zero is 220 volts, so this is not a three-phase electricity, its plugs and sockets are not three-phase plug and three-phase sockets, the ground for safety. Fruits with antihypertensive effect Hawthorn; Hawthorn can dilate blood vessels, lower blood pressure and lower cholesterol.
Optional wild hawthorn 10 grains (fresh is good), mashed and sugar 30 grams, water decoction is often served, has a good role in lowering blood pressure, stomach. Banana; banana contains many kinds of vitamins, can clear heat and lower blood pressure, can be eaten often.
With banana peel or stalk 30~60 grams, decoction soup is also effective. Conditional take the appropriate amount of banana flowers decoction water service, the efficacy is better.
Water chestnut; has the effect of clearing heat and lowering blood pressure. Available fresh water chestnuts (washed, remove mud), jellyfish (washed to remove salt) 30 to 60 grams each, boiled soup, 3 times a day.
Both can lower blood pressure and can dissolve phlegm to stop coughing. Pineapple: Eating pineapple can strengthen the hydrolysis of fibrin in the body, hypertension and edema, thrombosis, etc. to improve blood circulation and eliminate edema and inflammation of the good effect.
Ume: rich in citric acid, malic acid, succinic acid. For hypertension, dizziness and insomnia, nighttime sleeplessness, can take 3 plums with the right amount of rock sugar stewed in water, with hypotension, sleep, heat and fluids.
Apple: contains malic acid, citric acid, vitamin A, B, C and other 10 nutrients. Eating apples can improve vascular sclerosis. Scientific drinking milk knowledge 5 drink milk is good for health, but many people drink milk there are some concepts on the misunderstanding, now introduce some scientific drinking milk knowledge.
1. Drinking milk on an empty stomach in the morning is not appropriate. Because the human body fast fast gastrointestinal peristalsis, milk nutrients are often too late to be absorbed into the colon.
In addition, the method of drinking milk in a big mouth is not desirable, because it will reduce the chance of mixing in the mouth and saliva, not conducive to digestion and absorption. Before drinking milk, it is best to eat some cookies, pastries, etc., or eat snacks while drinking milk.
2. Drinking milk at night is more favorable. Scientific research has found that the human body in the calcium metabolism will have a special law: the evening, especially at midnight, plasma calcium content will appear a "trough", forcing the body to regulate the mechanism of transporting a part of the bone in the calcium to replenish.
In this way, the calcium in the blood is temporarily maintained, but the calcium in the bones is reduced. Milk is rich in calcium, so drink a glass of milk before going to bed, can compensate for the body's night on the demand for calcium.
3. Milk should not be boiled with sugar. Milk is rich in amino acids, lysine in milk under high temperature conditions and sugar Mellard reaction, generating a new compound - fructose-based amino acids.
This material is not only can not be digested and absorbed by the human body, but also affect human health, milk is best to drink fresh, such as too cold slightly heated. 4. You can drink yogurt if you don't like milk.
Most people who are lactose intolerant have an aversion to milk, and these people can try drinking yogurt. The lactose content in yogurt is greatly reduced, but almost all the nutrients of milk are retained, and the lactobacilli can survive and reproduce in the human body, which is conducive to the absorption and utilization of nutrients and improve immunity.
Yogurt does not contain antimicrobials and is easy to digest and absorb so you can drink it on an empty stomach. 5. Yogurt can not be heated to drink.
Drinking yogurt mainly eat its nutrients and live bacteria, such as yogurt heating, the human body can only drink to the nutrition but the loss of biologically active lactic acid bacteria, so do not drink after heating. Mercury is the smallest Earth-like planet in the solar system.
Because it is blocked by the sun's glare, it is very difficult to observe. On his deathbed, Copernicus regretted never having seen Mercury in his life.
After the 1970s, humans learned more about the amount of water. Mercury is the smallest Earth-like planet in our solar system.
It is difficult to observe because it is blocked by the Sun's glare. On his deathbed, Copernicus regretted never having seen Mercury in his life.
After the 1970s, humans learned more about the amount of water. Mercury is the closest to the Sun, only 57.9 million kilometers, is 0.387 times the distance between the Sun and the Earth, Mercury equatorial radius of about 2/5 of the Earth.
Mercury has no air. Mercury's appearance is very similar to the moon, the surface is covered with large and small craters.
Hundreds of millions of years ago there may have been volcanic activity, the star surface can now be seen in several areas that look like volcanic lava formation of the plains, but also all over the large and small craters. Mercury has a huge concentric circles on the structure, a radius of about 1300 kilometers, which is located in Mercury 30 degrees north latitude and 195 degrees west longitude, due to the particular heat, it was named by scientists "calorie basin".
Mercury also has more than 100 pits with radial stripes on the surface, and a large number of three to four kilometers high cliffs, some hundreds of kilometers long. Mercury's density is close to that of Earth.
It probably has a core of iron-nickel at its center that is similar in size to the Moon, and also has a magnetic field that is only 1/100th as strong as that of Earth's. Mercury orbits at a speed of 48 km/s, which is 18 km per second faster than Earth.
A revolution around the Sun is also the fastest, as long as 88 Earth days, less than 3 months on Earth, Mercury is 1 year. However, Mercury's "day" is very long, Mercury rotates around nearly 58.65 Earth days, that is to say, Mercury's 1 day is the Earth's nearly two months, 1 year on Mercury, can only see two sunrises and sunsets.
Mercury and Venus do not have a satellite. Technology People /chinababyxl/kwbc/kjrw/ Hua Luogeng is one of the world's leading mathematicians in number theory.
But he preferred to start a new career, leaving number theory to study algebra and complex analysis, which he was unfamiliar with. As early as the 1940s, he argued that "genius lies in accumulation, intelligence in hard work".
Although Hua Luogeng is too smart, but never mentioned their own talent, but more important than smart "diligence" and "accumulation" as the key to success, repeatedly educate young people to learn math to do! "Fist without leaving the hand, song without leaving the mouth", often exercise themselves. In the mid-50s, Hua Luogeng proposed: "There should be speed, but also acceleration." The so-called "speed" is to produce results, the so-called 'acceleration' is the quality of the results should be constantly improved.
In 1978, he put forward at the Chengdu meeting of the Chinese Mathematical Society: "publish early, evaluate late." Later on, he further proposed: "Make an effort.
2.5th grade book of science record book how to draw a good look
A few days ago, Wenzhou City, the first elementary school students excellent science record book competition activities successfully concluded, more than 100 award-winning student science record book, has been in the city of Experimental Primary School and Lucheng District, Ouhai District, Wencheng County, a few schools on tour. From the science record book, we can get a lot of information about students learning science, each science record book is a child's world, are the footprints of children's growth. "Idea House", "Laboratory", "Broadband Network" ...... The students' science records are so rich. Look, there are the phenomena they observed in the classroom, data, there are also students based on the knowledge of the classroom designed small experiments outside the classroom. For example, on the "pendulum research" class, students set up after class "pendulum rope material will affect the speed of the pendulum" "change the pendulum hammer material will affect the speed of the pendulum" and other small experiments. These experimental records, there are text, charts, photos, some paintings, and some cut and paste, illustrated, like a small science magazine.
Wenzhou Municipal Institute of Education and Teaching Primary Science Teaching and Research Teacher Shi teacher said: "students' experimental records do not require uniformity, each student can use their favorite way to record the process of scientific learning, accompanied by the process of scientific inquiry, the child's record level continues to be improved, which is also a kind of growth." The students' record books are expressed in a variety of ways. Yongjia Oubei Town, the second elementary school Fang Zhouyan's record book is filled with colorful water brush drawings; while the experimental elementary school Zhang Kaixiang's science record book is like a comic book, he will be his drawing expertise into the experimental record, each experiment with cartoons plus a small amount of text to record; experimental elementary school Zhu Peipei students of the science record book is very thick, or text, or drawings, or specimens, to retain her from third grade to The science record book of Zhu Peipei from Experimental Primary School is very thick, either in text or drawings, or in specimens, keeping her learning records from the third grade to the fifth grade for over two years.
A beautiful booklet of children's scientific explorations is a record of students' footprints in science. Here are a few of the best record books for you to read.
Growing Up File
By Yao Piao Piao, Class 5(3), Shuangyu Central Primary School, Lucheng District
Featured: No colorful, no colorful patterns, simple words can also be an excellent record book. The author puts her own photos on it and extracts quotes from famous authors to encourage her to record what she sees and hears at any time. The author has set up two themes: inside and outside the classroom. In the classroom, the author organizes the results of the experiment through the columns of "Ask a question", "Experimental materials", "Experimental process", "Conclusion" and so on.
Tips>>>
When buying a notebook, try to choose one with larger paper and more pages. Bigger, you can record more content, classroom teacher distributed under the science folder sticky in the book is also very convenient; thick, you can record from the third grade to the sixth grade more science experiments, easy to review and review later, in the flipping feel their growth and progress. Lower grades students try to choose paper with a fine backing to avoid crooked and untidy writing when recording. To learn how to record, the record of each research activity should not ignore the subject and date, and the whole record book should be organized with a table of contents and page numbers for easy reference. Finally, it is most important to develop good record-keeping habits.
Science Notebook
By Qiu Shuyang, Wenzhou Chengnan Primary School, Class VI (5)
Features: "Why observe with a magnifying glass", "New discoveries under the magnifying glass", "Features of Magnifying Glass", "Knowledge Links", "Review Summary" ...... Author's Column Setting Distinctive and much like a classroom notebook, it contains many extensions of scientific knowledge in addition to experimental observations. Recorded in text-based, clip art, drawings, not lost as a good science review book.
Science Mood Journal
By: Plaza Road Elementary School, Class 3 (8), Zhu Yanlin
Featured: 15 "silkworm baby observation diary" is more like the author's diary, the author in each article detailed records of sericulture through, observations and feelings. She also takes photos and draws cartoons of the silkworm babies, which are glued onto the record book to enrich the observations. In addition, after each article, are equipped with a paragraph of "mother's language", recorded in the mother and daughter of the experimental dialogue, observations, highlights and feelings, mother and daughter together, really for the record book a lot of fun.
Science Magazine
By Samuel Yeh, Washi Primary School, Class 6
Features: In each experiment, six columns are recorded: "Idea House"-record the author's existing knowledge of things; "Knowledge Window" - to sort out classroom science knowledge; "Laboratory" - through charts, data and other The "Broadband Network" is the author's knowledge of related topics collected through the Internet after class; "Creative Workshop" is some small experiments designed by students themselves according to what they have learned in class, such as using various materials to make their own magnifying glasses after learning about magnifying glasses; "Creative Workshop" is some small experiments designed by students according to what they have learned in class. The "message board" is an interactive evaluation of students, teachers and parents.
Science painting book
By: Yongjia Oubei Town, the second elementary school, fifth grade Fang Zhouyan
Featured: red, yellow, green; flowers, leaves, bows; frogs, piglets, ducks ...... colorful, rich patterns, this is the first impression of the record book to us. The author records science experiments with her favorite colorful and patterned icons, which is playful and cute to read.
3. How to draw science and technology handbook
Learning Science Using Science Science Popularization Science and technology is a great historical impetus for human progress and social development. The popularization of science as a bridge from science and technology to human society is the eternal theme of human history. Why do leaves fall in the fall? Leaf fall is an ability of broad-leaved trees in temperate regions to reduce transpiration and prepare for a safe winter. Autumn means the advent of winter, trees in order to self-protection need to be dormant, and winter dormant trees themselves need nutrients, in order to regulate their own internal balance, many trees need to fall leaves, reduce water, nutrient loss, saving energy until the conditions are suitable to sprout from the new; and some trees such as pines and cypresses because of the leaves like the tip of a needle, the loss of water and nutrients is particularly small, so it can remain evergreen. Around the scientific knowledge - safety Why red light stop, green light? Because although red light and green light are both colored light, but they also have different places: red light travels a little farther than green light, in the foggy weather, red light penetration ability is also stronger than green light. So using red light as a stop signal, can let the drivers see earlier, early preparation. If you use a green light as a stop sign, the drivers won't be able to brake in time and will have an accident. Children should also obey the traffic rules. You must remember: stop on red, go on green. Science is all around us. In the ordinary things, there are also hidden gold! In fact, the so-called science is sometimes around us, by careful observation and a strong desire to know can find them.
4. How to draw science fiction paintings
In the development of modern social life needs and limited natural resources of the Earth is diminishing today, the exploration of the universe beyond the Earth and save our survival of the harsh environment has become the world's top priority. Scientists and scholars from all over the world are all exploring and anxious. The sense of worry makes us have all kinds of reverie: to the moon to live, to Mars to live, change the desert into an oasis, with robots to work ...... to fly into space, has become a reality by the human dream, but to fly farther, better development and utilization of space for the benefit of mankind, but also need to continue to carry out our fantasy and hard practice. Elementary school students can draw science fiction paintings to carry out fantasy and practice. What should they draw? You can draw fantasy flight to expand human life farther and farther space, build a space city, design aircraft; you can also fantasize about good solutions to today's environmental disasters, repair the ozone layer (to solve the warming of the Earth's atmosphere, ultraviolet rays into the atmosphere of the problem), high-rise cable cars (to solve the traffic jam); large-scale planting of forests (waterproofing, sand). Of course, you can also fantasize about solutions to pollution, viruses, and so on. How to draw science fiction? First of all, teachers should collect and master the relevant space, environmental protection information, before students draw science fiction, broaden their horizons, so that students can draw something, whimsical. Such as pictures, video materials to show students, but also can be arranged before the class students to find the relevant space, environmental protection information. Students should pay attention to the study and collection of social and environmental problems in the local community. Such as roads, transportation, housing, garbage, food and drink, waste gas, waste water, commodities, vegetation and so on. The teacher can use the science fiction paintings drawn by students in the school as models to expand the teaching materials. Some children's toys (spaceships, rockets, robots, etc.) can also be used as references. When the students have the relevant materials, they will be able to propose good solutions to the problems in life, express their meaning through sketches, and then, under the guidance of the teacher, finally imagine and create until they are finished. Some guidance is needed on how to draw. Such as drawing larger, full composition, the image drawn vivid and smooth lines, colors and so on. It can be done in three steps: imagining, sketching, and drawing. You can use the good work of your peers to guide you, or you can learn from the works of artists, there are various ways. Science fiction drawings can be done in collaboration with the science and technology teacher, combining scientific knowledge from nature classes or after visiting exhibitions in science and technology museums, which is conducive to better drawings. Can also jointly run a small magazine, science and technology newspaper, both new forms can achieve good results. The expression of science fiction paintings, but also the use of graphics software through the computer to complete, or printed, or published online, or even guide the ability of students to try to create science fiction web page. After painting, we can organize a small exhibition of science fiction paintings. The work involved in organizing an exhibition generally includes selecting the artwork, setting up the exhibition, writing labels, making invitations, drawing and putting up posters, and viewing the exhibition. There are many ways to set up an exhibition, depending on the classroom and the conditions, but the general idea is to use picture frames (school-provided frames or homemade simple frames), hanging displays with thin rope or wire and clips or paper clips, and so on. The whole process requires careful planning on the part of the teacher in order to be organized and to work both separately and cooperatively on their own exhibitions. This part has two levels of objectives, one is the previous part of the results of learning activities, that is, everyone drew science fiction paintings on display for appreciation and evaluation; second is to know how to do the exhibition, everyone do what work. The two parts are connected and complement each other. Do class small painting exhibition, depending on the situation, when the students have completed the creation and good tools, materials, venues and other appropriate preparation, should be selected on weekends or holidays before the completion of the better. Visiting the exhibition can be evaluated at the same time to organize the exhibition of activities, but also a good opportunity to penetrate the success of education. Encourage students to be bold and to comment freely on the works in the exhibition. Viewing the exhibition can be extended to the after-school, so that the class small painting exhibition to expand its influence .
5. How to draw science fiction paintings
In the development of modern social life needs and the limited natural resources of the Earth is diminishing today, the exploration of the universe beyond the Earth space and save our survival of the harsh environment has become the world's top priority. Scientists from all over the world and people with knowledge are exploring and anxious. Anxiety makes us produce all kinds of reverie: to the moon to live, to Mars to live, change the desert into an oasis, with robots to work ...... to fly into space, has become a reality by the dream of mankind, but to fly farther and farther away, better development and utilization of space for the benefit of mankind, but also need to be constantly fantasized and hard practice.
Elementary school students can draw science fiction paintings for fantasy and practice. What is the content of the painting? You can draw fantasy flight to expand human life farther and farther space, the establishment of space city, the design of the aircraft; you can also fantasize about the solution to today's environmental disaster, repair the ozone layer (to solve the problem of warming of the Earth's atmosphere, ultraviolet radiation into the atmosphere), high-rise cable car (to solve the problem of traffic jams); large-scale planting of forests (waterproofing, desertification). Of course, you can also fantasize about solutions to pollution, viral hazards, and so on.
How to draw science fiction? First of all, teachers should collect and master the relevant astronautics, environmental protection information, before students draw science fiction paintings, broaden their horizons, so that students can draw something, whimsical. Such as pictures, video information shown to the students, but also can be arranged before the class students to find out about the astronautics, environmental protection information. Students should pay attention to examine and collect the social and environmental problems in the local community. Such as roads, transportation, housing, garbage, food and drink, waste gas, waste water, commodities, vegetation and so on. Students' own insights from observation and understanding Teachers can use the science fiction paintings drawn by our students in the past as model paintings for everyone to learn, in order to expand the insufficiency of the teaching materials. Some children's toys (spaceships, rockets, robots, etc.) can also be used as teaching references. When the students have the relevant materials, they will be able to put forward a good solution to the problems in life, express their meaning through sketches, and under the guidance of the teacher, finally imaginative creation until completion.
How to draw to be certain guidance. Such as painting larger, full of composition, painted image of the vivid and smooth lines, colors and so on. Can be imagined by the conception - sketching - drawing to complete the three major steps. You can use the existing good work of peers to guide, you can also learn from the painter's work, the way is diverse.
Painting science fiction can be discussed with the science and technology teacher and collaboration, combined with the scientific knowledge of the nature class or visit the Museum of Science and Technology exhibition to create, in favor of painting better. Can also jointly run a small magazine, science and technology tabloid, both new forms can achieve good results. The expression of science fiction paintings, but also the use of graphic software through the computer to complete, or print out, or published online, and even guide capable students to try to make science fiction web page.
After painting, you can do a small exhibition of science fiction paintings. The work of organizing an exhibition generally includes selecting works, setting up the exhibition, writing exhibition labels, making invitations, drawing and posting posters, and viewing the exhibition. There are many ways to set up the exhibition, which should be chosen according to the classroom and the actual conditions, but generally there are picture frames (mirror frames provided by the school or homemade simple frames), hanging displays with thin ropes or wires and clips or paper clips, etc. The whole process requires careful planning by the teachers. The whole process requires careful planning on the part of the teacher in order to be organized, to the point where they both divide up the work and work together to put on their own exhibition. This part has two levels of objectives, one is the previous part of the results of the learning activities, that is, everyone drew science fiction paintings on display for appreciation and evaluation; second is to know how to do the exhibition, everyone hands to do what work. The two parts are linked back and forth and complement each other.
Class small painting exhibition, depending on the situation, when students have completed the creation and do a good job of tools, materials, venues and other appropriate preparations, should be selected on weekends or holidays before the completion of the better. Visiting the exhibition can be evaluated at the same time the effect of the activities organized exhibition, but also a better opportunity to penetrate the success of education. Students are encouraged to be bold enough to comment freely on the works of the exhibition. Viewing the exhibition can be extended to after-school, so that the class small painting exhibition to expand its influence.