Imagine making lemonade - molarity is like how much lemon juice you put in each cup of water. If you want to make your lemonade less strong, you can add more water to dilute it, but the total amount of lemon juice stays the same. It's like playing with a water gun - if you have a lot of water in a small gun, it's strong, but if you add more water to make it weaker, the total amount of water you have doesn't change.