Nice book. Cover corners have some wear. Additional Details ------------------------------ Subject code: Subject keyword: 4;kids;5;machine;3;nonfiction;2;6;8;kids books;girl;for kids;toddler;7;books for 6 year old girls;tools;robot;books for 4 year olds;childrens books ages 3 4 5;books for 8 year old boys;kid;books for 6 year old boys;kids books ages 6 7 8;childrens books ages 6 7 8;books for 8 year old girls;back;books for 5 year old boys;nonfiction books for kids;day;books for 5 year old girls;books for 7 year old boys;books for 4 year old boys;books for 7 year old girls;books for 3 year old girls;books for 3 year old boys;books for 4 year old girls;activity book;boy;childrens;gardening;school;stem;kids books ages 4 5 6;nature;science experiments for kids 6 7 8;earth day;toddler books ages 2 3 4;picture books;2nd grade workbook;science;activity books for kids ages 3 4 5;activity books for kids ages 6 7 8;kindergarten reading books;books for 5 year olds;earth;science books;science books for kids;robotics;earth day books for kids;bedtime stories;picture book;kids science;activity books for kids ages 4 5 6 7 8;kindergarten workbook;year;activity books;books for 8 year olds;science for kids;1st grade;earth day books;prek workbooks age 4 5;environment;engineering;earth science;age;3rd grade;story;workbooks for 1st graders;gardening for kids;robots for kids;nature books;climate change;ecosystem;workbooks for kindergarteners;tool;picture books for children;kindergarten prep workbook;1st grade workbook;kids activity books;books for kids 5 6 7;climate change books;earth day book;engineering for kids;how things work;nature books for kids;2020;recycling;engineering books;bedtime;activity books for kids ages 7 8 9;gardening books for kids;science book;5th grade science workbooks;kindergarten science workbook;inventions;best nonfiction books for kids;3rd grade science workbooks;machines;2nd grade science workbooks;engineering books for kids;environmentalism;environmental science;inventions for kids;science workbook grade 1;elementary;ecology;conservation;preschool activity books