New Bitcoins are created through a process called "mining." But this isn't mining with shovels and pickaxes! Bitcoin miners are powerful computers that solve super hard math puzzles. When they solve a puzzle, they get rewarded with new Bitcoin.

Imagine a giant contest where thousands of computers around the world are trying to solve a really hard math puzzle. The first computer to solve the puzzle gets a prize of brand new Bitcoin!

But these computers aren't just playing a game. They're actually doing important work. When they solve these puzzles, they're also checking and confirming all the Bitcoin transactions that people make. This helps keep the Bitcoin network safe and secure.

Bitcoin mining is designed to get harder over time. In the early days, you could mine Bitcoin with a regular computer. Now, miners use special computers that are super powerful and use a lot of electricity.

Also, the number of new Bitcoin created gets smaller over time. When Bitcoin first started, miners got 50 new Bitcoin for solving a puzzle. Now they get much less. Eventually, all 21 million Bitcoin will be created, and no more new ones will be made!