Imagine you're baking a cake. You start with a bowl of flour, sugar, eggs, butter, and milk. Let's say the total weight of these ingredients is 500 grams.
You mix all the ingredients together and bake them in the oven. The cake rises and changes shape, but it still weighs the same: 500 grams. This is because the cake is made of the same matter as the ingredients, just rearranged.
Here's why this illustrates the conservation of mass:
* No new matter is created: The cake doesn't gain any extra mass during baking. It's simply the ingredients combining in a different way.
* No matter is destroyed: Even though some of the ingredients change form (like the liquid batter turning into a solid cake), the total mass remains the same.
Important Note: While the mass remains constant, there are some things that seem to disappear during baking, like water. This is due to a change of state (liquid water turning into water vapor). The water is still there, just in a different form.
This simple example shows how the law of conservation of mass applies in everyday situations. The total mass of a closed system remains constant, even when matter undergoes changes in form or arrangement.
