A lock is like a special friend that helps keep your things safe. Imagine you have a treasure box where you keep your favorite toys. The lock is like a tiny guard that stands in front of your box. It makes sure that only you or someone you trust can open it with a special key. The key is like a magic word that tells the guard it’s okay to let you in.
Think of a lock as a puzzle. It has many tiny pieces inside that fit together in a special way. When you turn the key, it’s like solving the puzzle. Only when the puzzle is solved, the lock opens, and you can see what’s inside.
Imagine a secret handshake with a friend. Only you two know it, and when you do the handshake, it means you can share secrets. The lock and key work the same way. The lock is the friend waiting for the handshake, and the key is the secret gesture that lets you open the door to your treasures.