* New Substance: You're absolutely right that mixing juice powder and water creates a new substance, fruit punch. It has a different taste, color, and texture than the original ingredients.
* Physical Change: The key to understanding physical changes is that they don't alter the chemical composition of the substances involved. When you dissolve juice powder, you're simply separating the powder's components and dispersing them in water. The sugar, flavorings, and other ingredients in the powder remain chemically the same.
Here's a comparison:
* Physical change: Dissolving sugar in water, cutting paper, melting ice. The chemical makeup of the substances doesn't change.
* Chemical change: Burning wood, rusting metal, cooking an egg. The substances undergo a chemical reaction, forming new substances with different properties.
While you've created a new substance (fruit punch), it's still made up of the same chemical components as the original juice powder and water. It's just a mixture of those components.
