A stock is a very small part of a company. When you buy a stock of a company, you own (a small) part of that company.
For more information, visit: What are Stocks? A Simple Explanation for Kids’ Financial Literacy

A stock is a very small part of a company. When you buy a stock of a company, you own (a small) part of that company.
For more information, visit: What are Stocks? A Simple Explanation for Kids’ Financial Literacy