Inflation is like when you have a big box of crayons and everyone wants to use them. At first, you can get a crayon for one sticker. But as more friends come to play, the crayons become more special because everyone wants one. So now, you need two stickers to get the same crayon. This is what happens with money when prices go up, and you need more money to buy the same things.
Think of inflation as a balloon that keeps getting bigger and bigger. When the balloon is small, it fits in your hand, just like when a toy costs a little money. But as you blow more air into the balloon, it gets bigger and harder to hold, just like when you need more money to buy the same toy because prices have increased.
Imagine a magic sandwich that keeps getting smaller every time you take a bite, but your hunger stays the same. Even though you still have the sandwich, it doesn’t fill you up as much. This is like inflation when your money doesn’t buy as much as it used to, even though you still have the same amount of money.