Okay kiddo, let's imagine that you have a bunch of Legos and you want to build something really cool, like a castle. In order to build a strong castle, you need to make sure that the Legos stick together really well. That's kind of like how atoms are in a special type of bond called "network covalent bonding."
In network covalent bonding, atoms join together like Legos to form a big structure, like a crystal or a diamond. The atoms join together by sharing their outer electrons with each other. Kind of like when you share a toy with your friend, but instead of toys, it's tiny electrons.
The cool thing about network covalent bonding is that it forms really strong structures. Just like your castle made from Legos would be strong and sturdy, network covalent structures are hard and difficult to break apart. That's why things like diamonds are so valuable - they're made of network covalent bonds!
So, to sum up, network covalent bonding is a special way that atoms can join together to form big, strong structures that are like Legos or a castle made from Legos. It's all about sharing electrons and making sure that everything stays stuck together really well.