關於科學的書籍, I'd like to recommend "A Child's First Library of Learn

A Child's First Library of Learning.
It is a collection of books covering various science/nature subjects.

Everyday Life
Insect World
Flowers and Trees
Science Starter
Animal Friends
How Things Work
Sky and Earth
Dangerous Animals
Our Body
Life in the Water
Science Starter
How We Work
Dinosaurs

It is in questions and answers format with a mix of colorful drawings and photography, very good for the young readers to start their first exploration on nature and science.

Here is one of the books in the collection. Insect World

This set is very popular, you should be able to find them in the local library. Good Luck!