I am a little expert in knowledge.

1. Write a manuscript to ask for health knowledge in the fifth grade (more than 200 words).

1, often eat supper, will get gastric cancer, because the stomach can't rest.

2, you can only eat four eggs a week, eating too much is not good for your health.

3, chicken * * * contains carcinogens, it is best not to eat.

Eating fruit after meals is a wrong concept, and it should be eating fruit before meals.

Eating fruit in the morning is gold, eating fruit at noon is silver, and eating fruit at night is copper.

6. Don't add eggs and ponds to drink soybean milk, and don't drink too much.

7, don't eat tomatoes on an empty stomach, it is best to eat after meals.

8. When you wake up in the morning, drink a glass of water first to prevent stones.

9. Don't eat three hours before going to bed, you will get fat.

10, drink less milk tea, because milk tea is high in calories and oil, and has no nutritional value. If you drink it for a long time, you are prone to diseases such as hypertension and diabetes.

1 1, freshly baked bread is not suitable for immediate consumption!

12, away from the charging stand, the human body should be away from more than 30 cm, not on the bedside.

13, drink eight glasses of water every day.

14, ten glasses of water a day, bladder cancer will not come.

15, drink more water during the day and drink less water at night.

16, don't drink more than two cups of coffee every day. Drinking too much can easily lead to insomnia and stomachache.

17, eat less greasy food, because digestion takes 5~7 hours, and the blood in the brain is concentrated in the large intestine, which will make you sleepy.

18, after five o'clock in the afternoon, eat less, because the body doesn't need so much energy after five o'clock.

19, 10 Food types that will make you happy: deep-sea fish, bananas, grapefruit, whole wheat bread, spinach, garlic, pumpkin, low-fat milk, chicken and cherries.

20, lack of sleep will become stupid, you must sleep for eight hours a day, and you will not get old if you have a nap habit.

2. Handwritten newspaper about protecting the environment, staying away from smog, and striving to be an environmental expert.

In order to implement the deployment requirements of the Municipal Party Committee's "declaration of war on pollution" on air pollution prevention and control, guide all street pupils to understand and experience environmental protection knowledge in practice, establish environmental awareness, develop good environmental behavior habits and participate in environmental protection actions as much as possible. On March 20th, Linshu Street Central School began to carry out the theme education activities of "protecting the environment from smog and striving to be an environmental protection expert".

First, the Young Pioneers Brigade of each school is required to make full use of the Young Pioneers theme team, squadron meeting, national flag, etc. to give speeches on environmental protection, and strive to create a good situation of "energy saving and low carbon, I am the master, everyone is environmentally friendly, and I am the first".

Second, the Young Pioneers' counselors of each school organized young pioneers to actively participate in the "low-carbon haze reduction and green Yimeng" activities, and donated money for voluntary tree planting in the county through "small hands and big hands".

The third is to carry out the "six environmental protection into the campus" activities. Activities such as environmental protection clubs, environmental protection radio stations, "environmental protection experts" theme team meetings, environmental protection photography exhibitions, environmental protection handwritten newspapers, and home-school linkage have mushroomed in various schools.

The activity mobilized the enthusiasm of primary school students to participate in environmental publicity, and cultivated the good habit of primary school students to pay attention to environmental protection from time to time and implement environmental protection everywhere. The concept of green travel, green consumption and green life has been deeply rooted in people's hearts, and the dream of "returning me a clear water and blue sky" is within reach. When going out, make yourself a protective mask, which belongs to sanitary products. Generally, it refers to a device worn on the nose and mouth to filter the air in and out of the nose to prevent harmful gases, smells and droplets from entering and out of the wearer's nose and mouth. It is made of gauze or paper.

Masks have a certain filtering effect on the air entering the lungs. Wearing a mask has a very good effect when respiratory infectious diseases are prevalent and when working in polluted environments such as dust. Masks can prevent yourself from being infected and protect others from being infected by patients. Wearing a mask is a serious responsibility for the elderly, and both sides benefit. The smog is so serious now. Wearing a mask can effectively reduce the inhalation of smog. Puwei new Tmall imported from the United States.

3. Popular science knowledge handwritten newspaper content

The charm of science is everywhere. As long as we take the initiative to explore with curiosity, we will find many interesting phenomena in life, such as the following 10 knowledge, which will definitely make your posture soar.

1. The largest monkey in the world is a baboon, and the smallest monkey is a bonobo.

baboon

2. The human body increases oxygen in the blood and discharges more carbon dioxide by yawning and deep breathing, thus making people more energetic. When people are sleepy, they often yawn constantly to remind people that their brains are tired and need sleep and rest.

People can drink about 80 tons of water in their lifetime.

Note: If a person lives to 60 years old, he will drink about 43,500 kilograms of water in his life, that is, if he drinks 2 liters (kilograms) of water every day, 60*365 days *2 kilograms = 43,800 kilograms, minus about 300 kilograms in infancy. There is no need to calculate that living to 60 years old should be about 80 tons of water.

4. The brightest star in the sky is Sirius Canis, with a magnitude of-1.46 and a distance of 8.7 light years from the Earth.

Everyone must have the habit of picking their nostrils. According to the survey, 90% people put their fingers into their nostrils several times a day. According to research, picking your nostrils may introduce dangerous bacteria into your nostrils, such as Staphylococcus aureus.

6. Morning glow and sunset glow are the most beautiful colors in the sky. It is formed because sunlight passes through the thick atmosphere around sunrise and sunset and is scattered by a large number of air molecules.

7. There is always lightning in Lake Maracaibo in Venezuela. Even scientists don't know why, but it seems that lightning is caused by airflow combined with local topography.

There used to be giant dragonflies in ancient times. The giant vein dragonfly appeared about 300 million years ago, about as big as a seagull, and its wings are about 65 cm long.

9. Lobsters die from molting, being eaten or being injured. They can live to be 70 without getting old first. If these three things don't happen, we can continue to live forever.

10, "White rabbit, white, so cute to jump". Rabbits beat the ground with their legs to transmit information, mostly with their hind legs, which is a way for them to express their feelings to female rabbits.