Canned food and convenience food: Pigment, essence, sweetener, preservative and other additives are often added in the production process of canned food and convenience food. China's "Hygienic Management Measures for Food Additives" stipulates that artificial sweeteners, pigments, flavors, sodium glutamate and inappropriate food additives should not be added to the main and auxiliary foods specially designed for infants. Because children's development is not yet mature and the function of liver detoxification is not perfect, these additives have a great impact on children's health.

Coke and carbonated drinks: Coke contains caffeine. Cola drinks will interfere with children's memory, make children's central nervous system excited, and easily lead to ADHD. Drinking too much carbonated drinks affects appetite and even causes gastrointestinal dysfunction. Because a large amount of carbon dioxide can inhibit bacteria in drinks and beneficial bacteria in the human body, the digestive system will be destroyed. In addition, most carbonated drinks contain phosphoric acid, and the intake of a large amount of phosphoric acid will affect the absorption of calcium, resulting in imbalance between calcium and phosphorus and threatening bone health. According to some data, the risk of fracture of teenagers who often drink a lot of carbonated drinks is three times that of other teenagers.

2. Pupils' knowledge of food safety

Primary school students should know the safety knowledge (primary school students must recite it) [edit this paragraph] Fire fighting. Fire protection 1. Basic requirements: primary school students should not play with fire: first, do not bring matches or lighters and other kindling; Second, it is not allowed to ignite at will, and it is forbidden to use fire for flammable and explosive materials; Third, it is not allowed to set off firecrackers in public places and throw lit firecrackers around.

At the scene of the fire, minors such as primary school students should escape in an orderly manner. 2, the way to deal with the fire, there is a fire at home, don't panic, and take corresponding measures in time according to the fire: if the oil pan catches fire when cooking, quickly cover the lid tightly, so that the oil fire in the pan is extinguished due to lack of oxygen, and it cannot be put out with water.

When a fire breaks out indoors, doors and windows cannot be easily opened to avoid air convection and form a large-scale fire. When paper, wood and cloth catch fire, water can be used to put out the fire. When electrical appliances, gasoline, alcohol and cooking oil catch fire, earth, sand and mud and dry powder fire extinguishers can be used to put out the fire.

If the fire is very big, you must report the fire immediately. When you are trapped by fire, you should take different methods to escape according to different situations.

If you lean down, cover your nose with a damp cloth. 3. How to call the police in case of fire? If a fire is found, the most important thing is to call the police, so as to put out the fire in time, control the fire and reduce the losses caused by the fire.

The telephone number of the fire alarm is 1 19. This figure should be kept in mind. In any part of the country, the telephone number for reporting fire to the public security fire department is the same.

According to this figure, 1 1.9 is designated as the fire safety day every year. You can't call the fire alarm at will. It is illegal to lie about a fire alarm and disturb public order.

When there is no telephone, you should shout loudly or take other measures to attract the attention of neighbors and pedestrians, and assist in fire fighting or alarm. 4. How to get out of danger correctly in case of fire? In case of fire, correct and effective methods should be taken to save yourself and escape, so as to reduce personal injury and loss: (1) Once threatened by fire, don't panic, calmly determine your position, judge the fire according to the analysis of smoke, light and temperature around you, and don't act blindly.

(2) In the bungalow, if the fire around the door is not big, you should leave the fire quickly. On the other hand, you must choose another exit to escape (such as jumping out of the window) or take protective measures (such as soaking clothes with water, wrapping your head and upper body with warm quilts, etc.). ) before leaving the fire.

(3) If you are in a building, don't blindly open doors and windows when you find a fire, otherwise it may lead to a fire. (4) If you are in a building, don't run around blindly, let alone jump off a building to escape, which will cause undue casualties.

You can hide in the room or on the balcony. Close the doors and windows, cut off the fire road and wait for rescue.

Conditional, can continue to water the doors and windows to cool down, in order to delay the spread of the fire. (5) In a burning building, you can't use the elevator to escape, but take the stairs through the fire escape.

Because the elevator shaft often becomes a channel for setting off fireworks after a fire. And the elevator may break down at any time.

(6) If the fire is too fierce and you need to jump off a building to escape, you can jump off the second floor, but you should choose a soft ground. At the same time, throw the bedding upstairs to increase the cushion of the ground, and then slide down the window, so as to minimize the falling height and let the feet land first. (7) If you are sure, you can tie one end of the rope (or tear it with a piece of cloth) to the window frame, and then slide down the ground along the rope.

(8) When escaping, try to take protective measures, such as covering your nose and mouth with a wet towel, wrapping your body with wet clothes and lying on the ground to escape. [Edit this paragraph] Traffic Safety China's "Traffic Law" stipulates that motor vehicles driving on our roads must abide by the principle of driving on the right, and motor vehicle drivers and front seat passengers must wear seat belts.

1. How to pay attention to traffic safety when walking? When students go to school, it is the most crowded time of the day. There are many people and cars, so we must pay great attention to traffic safety. (1) Walk on the road and walk on the sidewalk; If there is no crosswalk, you should take the side of the road.

(2) When going out in groups, it is best to walk in an organized and orderly manner; When going out together, don't chase, fight and play with each other; Pay attention to your surroundings when you walk. Don't look around, read newspapers or do other things while you walk. (3) In the section without traffic police command, you should learn to avoid motor vehicles and not compete with them.

(4) Pupils should wear yellow hats when queuing after school. In foggy, rainy and snowy days, it is best to wear colorful clothes so that motorists can find the target as soon as possible and take safety measures in advance. 2. What should I pay attention to when crossing the road? When crossing the road, the possible risk factors will increase greatly, so pay special attention to safety.

1) When crossing the road, obey the command of the traffic police; It is necessary to obey the traffic rules and achieve "green light, red light stops". 2) When crossing the road, take the crosswalk line; In sections with overpasses and underpasses, you should consciously take overpasses and underpasses.

3) When crossing the road, go straight and don't detour; In the section where there is no crosswalk, you should look at the left first, then at the right, and you can only cross the road when you confirm that there is no motor vehicle. 4) Don't climb over the safety fence and isolation pier in the middle of the road, and don't skate on the road.

[Edit this paragraph] Electricity knowledge course 1) Know the main switch of power supply and learn to turn off the main power supply in an emergency. 2) Do not touch or test the inside of the power socket with hands or conductive objects (such as iron wire, nails, pins and other metal products).

3) Don't touch the appliance with wet hands or wipe it with a wet cloth. 4) Unplug the electrical appliance after use; Don't pull the wire when plugging and unplugging the power plug to prevent the insulation of the wire from being damaged and causing electric shock; The insulation layer of the wire is peeling off, so it is necessary to replace the wire in time or wrap it with insulating tape.

5) If someone gets an electric shock, try to turn off the power in time; Or use dry wooden sticks and other things to separate the electric shock victim from the charged electrical appliances, and don't save people directly by hand; Younger students should ask adults for help in this situation, and don't handle it by themselves to prevent electric shock. 6) Do not disassemble or install the power cord, socket and plug at will.

Even if it is as simple as installing a light bulb, it should be turned off first and carried out under the guidance of parents. 7) In case of smoke, sparks and burning smell. , should immediately turn off the power switch, stop running.

3. Pupils' knowledge of food safety

First, what is food quality and safety? Food quality and safety refers to the degree to which food quality ensures the health and safety of consumers.

Including three aspects: first, the quality and safety problems caused by food pollution. For example: biological pollution, chemical pollution, physical contamination, etc.

The second is the quality and safety problems brought about by the technological development of the food industry. Such as: food additives, food producers, media, radiation food, genetically modified food, etc.

The third is the abuse of food labels. Examples: forged food labels, lack of warning instructions, false labeling of food functions or ingredients, lack of Chinese food labels (imported food), etc. 1. What problems should primary and secondary school students pay attention to when buying food? 1. Buy in regular stores, and don't buy "three noes" food around the campus and in the streets.

2. Buy food produced by regular manufacturers and try to choose brands with good reputation. 3. Check the product label carefully.

Food labels must be marked with: product name, ingredient list, net content, factory name, address, production date, shelf life, product standard number, etc. Don't buy products with nonstandard labels.

4. Whether the food is suitable for your own consumption. 5. Don't blindly follow advertisements. Advertising does not represent science, but reflects the interests of businesses.

Second, what dietary hygiene habits should primary and secondary school students pay attention to? 1, boiled water is the best drink, and some drinks contain preservatives, pigments and so on. And regular drinking is not good for children's health; 2. Develop good hygiene habits to prevent the spread of intestinal parasitic diseases; 3. Wash raw vegetables and fruits before eating to avoid pesticide poisoning; 4. When choosing food, pay attention to the production date and shelf life of the food; 5. Try to eat less or not eat leftovers. If you eat leftovers, you must heat them thoroughly to prevent bacterial food poisoning; 6, do not eat raw food without health care, such as sashimi, raw water chestnut; 7. Do not eat street food without health protection; 8. Eat less fried, smoked and grilled food, which will produce toxic substances if it is not properly made. Third, do primary and secondary school students eat sweets as much as possible? Summer drinks are rich in sugar, and children who eat too much are prone to skin inflammation and various diseases.

Eating too much sugar in summer will also produce a lot of acidic substances, thus breaking the normal acid-base balance of blood and making children acidic. Medical data show that 70% of diseases occur in people with acidic constitution, which undoubtedly makes children the "number one bed for slimming in Korea".

In addition to the above functions, many drinks also lack protein and fat necessary for children's development. Drinking too much will affect children's eating dinner and cause malnutrition, so it is best not to drink more than 100 ml every day. Nutritious foods that make students smart What are the nutritious foods that make students smart? Eat more fish, egg yolk, shrimp skin, seaweed, kelp and lean meat. 2. Eat pig liver, animal brain and other animal viscera once a week. Eat oranges, apples and other fruits rich in vitamin C every day. 4. Eat beans or bean products every day. 5. Eat mushrooms 1-2 times a week. 6. Eat bananas, carrots and carrots.

5. How can individuals prevent food poisoning? 1, wash your hands before and after meals; 2, cooked food placed for more than 2 hours, reheat to 70℃ or above before eating; 3. Wash and peel the fruits before eating; 4. Don't buy food of unknown origin and beyond the shelf life; 5. Don't buy food from small shops or roadside stalls without hygiene license and business license (especially those without sealed packaging); 6. Don't eat food that has been confirmed to be spoiled or suspected to be spoiled; 7. Don't eat food that you know that preservatives or pigments have been added, but you are not sure whether the added amount meets the food hygiene and safety standards. 6. Which vegetables are best for children to eat in summer? The water in melons and vegetables is natural, clean, nutritious and bioactive water filtered by multi-layer biofilm, which is irreplaceable by drinking water.

Summer is also the peak season for melons and vegetables, and their common feature is that the water content is above 90%. The water content of wax gourd ranks first among all dishes, reaching 96%, followed by cucumber, golden melon, loofah, bergamot, pumpkin and bitter gourd.

After the cool vegetables enter the summer, the biggest factor affecting the human body is the poison of summer dampness, so eating some cool vegetables is conducive to promoting fluid production and quenching thirst, clearing away heat and toxic materials, and relaxing bowels. Such as bitter gourd, towel gourd, cucumber, tomato, eggplant, celery, lettuce, asparagus, watercress and so on. They are all cool vegetables, so you might as well eat them often.

"Disinfecting" vegetables in summer is a season of frequent diseases, especially intestinal infectious diseases. At this time, eating more "sterilized" vegetables can play a role in preventing diseases. This kind of vegetables include garlic, onion, leek, chives, garlic sprouts and so on.

7. What should I pay attention to when drinking milk? 1, it is not advisable to drink alcohol on an empty stomach. Many people like to boil milk and drink it when it is cold, as a common drink and juice. Although this is convenient, drinking milk on an empty stomach will make the milk stay in the stomach too short and enter the excretory system too fast, thus affecting the comprehensive absorption of nutrients.

Eat snacks, such as bread, when drinking milk. Biscuits, etc., to extend its residence time in the digestive system.

Health knowledge about kidney disease diet II. It is not advisable to drink iced milk. Drinking cold or iced milk can refresh you, but cold milk is harmful to the stomach and easily causes diarrhea.

3, not suitable for warm storage. Some people like to save trouble, cook milk in the morning, put it in a thermos and throw it away when they want to drink it.

As we all know, milk, a nutritious beverage, is easy to breed bacteria in an environment with suitable temperature, which leads to milk spoilage. 4, should not be cooked for a long time.

Some people boil milk for too long, but it's not good. Because boiled milk usually needs white sugar, and boiled for too long, lysine and white sugar in milk will produce fructosyl lysine at high temperature, which is a substance that is difficult to be digested and absorbed by human body.

5, it is not advisable to drink caked milk. If there are lumps or flocculent substances in milk, it is not suitable to drink any more, because such milk has gone bad.

Eight, how to distinguish the shelf life and shelf life of food? The so-called shelf life (the best edible period and the shortest applicable date) refers to the period to maintain the quality under the storage conditions specified in the label. After this period, you can still take healthy and effective diet pills for a certain period of time.

Shelf life (suggested last edible date) refers to the expected date of termination of consumption under the storage conditions specified in the label, after which the product is no longer edible. Nine, how to be correct.

4. What are the food safety knowledge of primary school students?

I road safety 1. In the city, it is smooth and safe for cars to drive on the road and people to walk on the sidewalk.

The red light stops and the green light goes. When crossing the road, take the crosswalk or overpass tunnel. 3. On the road without guardrails, the speed is faster, and children can't walk and climb over guardrails at will, otherwise it is easy to have a crash.

When walking in a narrow street, you must walk on the right, and don't let several children walk sideways, so as not to hinder others from walking and vehicles. Second, you should concentrate on walking 1. While walking, I was thinking about my own thoughts and didn't pay attention to the vehicles and pedestrians on the road. If you don't pay attention, you can easily get into trouble.

2. A group of children talking while walking, having fun and forgetting to observe the surrounding environment can also lead to traffic accidents. 3. Walking on the roads in the suburbs and the wild, thinking that there are fewer cars and fewer people, you can run fast.

Don't you know that you may encounter obstacles at any time, such as wire for fixing telephone poles and abandoned cement slabs? It should be very safe in the dormitory area, but you should also pay attention to observation when walking, otherwise you may trip over the rope for drying clothes.

Third, pay attention to unexpected obstacles 1. Due to the repair of various underground management, the dug ditch has not been filled, so be careful when walking. 2. The pavement is under construction, often bumpy and piled with sand and gravel. If you don't pay attention, it will cause accidental injury.

3. In residential areas, sometimes the manhole cover is lifted, so pay special attention when walking. This phenomenon also exists on the road. Once you fall into it, it will be deep and the damage will be extremely heavy.

Do not play 1 on the road. Roller skating is a good sport, but skating on the road is wrong. People come and go on the road, which is prone to accidents.

In winter, the snow on the road turns into ice, so you can't go skating. 2. Playing skipping rope and jumping squares on the road not only hinders traffic, but also is unsafe.

Of course, you can't play football and hide-and-seek in the street. Even in an alley, it's easy to hit a sudden car. Calling across the road to say hello is also easy to be collided by pedestrians and vehicles.

5. Take a civilized ride 1. Go to school, travel, and often take the bus. Children should be civilized passengers, wait for the bus to stop and get on and off in an orderly way.

2. Stand firm after getting on the bus to avoid falling when the car turns sharply. Don't chase each other and play hide-and-seek on the bus, and drill around in the gap between people, so you will fall down when you brake suddenly.

4. Sit in the carriage, stick your head and hands out of the car, or stick what you are holding out of the car, so it is easy to have an accident when two cars meet. Six, highway safety 1. On suburban roads, don't ride bicycles to and from school side by side, which not only hinders traffic, but also is uncivilized, crowded with each other and easy to wrestle or hit people.

It's faster to get on the bus on the expressway. When crossing the expressway, observe left and right, and then pass when there is no car passing. On the highway, some students like to ride bicycles, or two or three people carry their backs hand in hand, which is unsafe.

The speed on the expressway is very fast, so the driveway is completely closed. Pedestrians are strictly forbidden to enter. Children should remember that. Riding Safety (1) 1. 12 Children under the age of two are not allowed to ride on the road. Older children should be familiar with traffic rules and learn to protect themselves when going out or riding a bike to school.

It is not safe to learn to ride a bike on the road or street. You should learn to ride a bike on the playground and other open places. 3. Pay attention to the maintenance of bicycles, especially keep the brakes in good condition.

Riding safety (2) 1. It is against traffic regulations to take people on the road by bike, which is not safe for cyclists and passengers. 2. Take your hands away for fun, it's not safe. Once you fall, it's bad to meet a car suddenly.

In order to be a "hero", try to catch up with the moving car. Once the car brakes suddenly, it will hit the car. 4. In order to save energy and have fun, one hand pulls the tail of the motor vehicle and the other hand holds the handle to drive forward, and the motor vehicle suddenly turns, accelerates or brakes, which is prone to danger.

Cycling safety (3) When crossing the road by bike, you must stop and observe the surroundings to ensure safety before passing. Never cross by force. When riding a bicycle to turn, you must gesture first to avoid hitting people or cars behind you.

When cycling on roads and highways, you must drive on the right. Retrograde can easily lead to confusion and collapse. Don't ride too fast, it's difficult to control at high speed, and it's easy to have an accident in case of special circumstances.

Cycling safety (4) It rains in Mao Mao in autumn, and places with muddy water may be slippery, so be careful when going out by bike. When riding a bicycle on the road in snowy days, you should try to pull over to prevent falling and being injured by a car from slipping into the motorway.

The road is frozen, and the wheels are easy to slip when turning. If you are not careful, you will fall, so you'd better get off early, slow down before you get off, and never brake suddenly. The road was originally uneven, but when it was covered with snow, it looked flat. You should be especially careful when riding on this road to prevent you from falling.

Don't play on the railway. Children near the railway like to play on the railway, walk on the balance beam, lie on the rails and listen, and throw stones on the rails. This is very dangerous. Some children got under the train when it stopped at the station. Once the train starts, it will be in big trouble.

Standing on the platform of a train or beside a railway, you must keep a certain distance from the tracks. Otherwise, the airflow generated by the fast train will drag people into the ditch.

When you put down the railing at the entrance of the railway, wait patiently for the train to pass by, and don't rush to cross the railway.