There is a primary school student at home who likes to read popular science books, and there are actually quite a lot of popular science books.
However, if you want to say that the best-selling model is still very popular with children, it is the "Encyclopedia of German Children's Knowledge".
Add**Annotation, no more than 140 words (optional) Since the beginning of summer vacation last year, a series of books should be arranged for the baby during each holiday, each series is 10 books, and the child can also read it during the vacation.
This set of "Encyclopedia of German Children's Knowledge" dolphin children's books has a total of seven volumes, and now there are three volumes at home.
Because the children like the first and second series so much, the third series is our winter vacation.
Contains "The Power of Nature", "Electricity That Changed the World", "All Kinds of Fish", "Cat Family", "Fantasy Forest", "Desert Journey", "Magical Train", "Great Invention", "Stars in the Universe", "Loyal Dog".
Add**Annotations, no more than 140 words (optional) This set of books is like a family museum, rich in content and comprehensive. There are planetariums, future museums, nature museums, art museums, history museums, life museums, society museums, and science museums, so you can take your children to explore the whole field and build a super comprehensive knowledge system without leaving home.
It not only sits on the world's cutting-edge scientific and technological achievements, keeps up with the pace of scientific development, but also more than 100 scientists work together to complete it.
This set of popular science books is more detailed in content, and it is also very suitable for primary school students over 7 years old. 
Add** annotations, no more than 140 words (optional) One of the reasons children love this set of encyclopedias is that it's very detailed.
For example, in the book "The Family of Cats", there is not only a systematic introduction to the family of cats, but also a key list, with relevant **, clearly displayed in a magnifying glass mode.
Add ** annotations, no more than 140 words (optional) There are not only comparison pictures, real pictures, but also hand-drawn drawings, which make professional knowledge interesting to interpret, and let children like to read.
In terms of content design, it covers timelines, regionality, as well as various enumerations, tree structure diagrams, etc., which not only help children better understand and read, but also satisfy children's intellectual curiosity.
Add a note, no more than 140 words (optional) This set of books is not about simple science popularization, but also showing children the wonder of all things in a more interesting way.
For example, through the cat's self-report, I know how this goddess was discovered, how she was pampered and worshipped, and how she changed from a goddess to a domestic cat.
Add ** notes, no more than 140 words (optional) Through her paragraph of self-description, it is like watching an old movie to witness her transformation from a high-flying holy beast to an ordinary domestic cat.
In terms of content display, each page is like a handbook, clear and intuitive.
Add**Annotation, no more than 140 words (optional) This set of books has authoritative HD**, 100% optical viewfinder, cosmic starry sky streamer reflection, animal hair is visible, from the world's major authoritative research institutions.
In the book "The Cat's Family", the cat's whiskers and hair are clearly visible, and even the skin sheath of the cat's claws is clear.
Add**Annotation, no more than 140 words (optional) in HD**, as if the cute kitten is right in front of you.
In "All Kinds of Fish", it is like being in the underwater world, watching all kinds of fish swim around, and even the details of the fins and scales are clearly visible.
Add ** annotations, no more than 140 words (optional) Look at each picture as if you are enjoying a blockbuster movie, and you are in it. 
Add ** annotations, no more than 140 words (optional) This set of YS, children's popular science books recommended by learning powers, must be prepared for children during the holidays to expand children's knowledge horizons.
Let every one of the children's whys reverberate!