Primary 1 Essay 300 Words Reading 100,000 Whys has a feeling

Reading "100,000 Whys" has a feeling.

100,000 Whys is a popular science book with a lot of rich knowledge. Tell us why there are stars in the sky, why the sun shines, why it rains in the sky, why the ocean is a blue treasure house, why the sun shines on its own before and after, and why the desert is colorful ......Each article tells us a little scientific truth. It not only helps me broaden my horizons and increase my knowledge of singing, but also improves my interest in learning.

Not only does it help me drive before I had no knowledge of the nine planets and the Milky Way. "100,000 Whys" introduces us to the formation of celestial bodies. I learned that Venus, Mercury, Saturn, Jupiter, Mars, Earth, Uranus, Neptune, and Pluto are the nine planets in the solar system.

The Milky Way, on the other hand, is made up of many nebulae like the solar system. The Earth we humans live on is just a "little star" in the universe.

Why is seawater bitter and salty? Before, I didn't know why seawater is bitter and salty, but after reading "100,000 Whys", I know that it is because seawater contains a lot of salt. Sodium chloride is the table salt that people usually eat, and the taste is salty; Magnesium chloride and magnesium sulfate have a bitter taste, and as a result, sea water is bitter and salty.

"100,000 Whys" also answers that shrimp and crabs are cyan when they are alive, and they turn red when they are cooked, because there is a lot of melanin in undercooked shrimp and crabs, and the melanin in cooked shrimp and crabs is gone, only red pigment, so they become red.

100,000 Whys has added a lot of knowledge to me, and it has made me realize how colorful the world is. The book "100,000 Whys" has taught me a lot of truths, it is a silent teacher, it has given me infinite knowledge, and I love "100,000 Whys".

Key words: Why is there a feeling for the fifth grade of primary school 400 words.

Word Count: 400 words essay.

Confucius once said: never get tired of learning, never tire of teaching. Yes, don't get tired of learning, you have to like learning, and you will use unexpected gains. I recently read the book "100,000 Whys" and I learned a lot from it.

"100,000 Whys" is rich in content, it contains geography, biology, human body, medicine, astronomy and other knowledge, in addition to these there are many, many aspects of content, it is a popular science book that can increase your knowledge and broaden your horizons. The novel and interesting things in the book, with questions and answers, are very disturbing and eye-catching, and will make people forget to sleep and eat, and they can't let go of the book.

For example, "What did the ancient people keep time?" They were timed with "sundials".

A "sundial" is a piece of wood that stands upright on the ground, and stones are placed at a certain distance around it, so that no matter where the sun is in the sky, you can know the time of day. However, this method does not work on rainy nights. So later, people invented a method of measuring water (drip leakage).

It was not until 1657 that the Dutch mathematician Huygens made the world's first pendulum clock based on the law of oscillation discovered by Galileo in 1583. To this day, this pendulum clock is still very popular.