Powdered drink mix is added to water
Evidence that substances changed (or not)
1. Before the powdered drink mix is added to water, it is in a dry, solid form. After it is mixed with water, it dissolves completely and forms a liquid solution. This is evidence of a physical change, as the substance changed from a solid to a liquid state.
2. If the powdered drink mix contains any dyes or colorants, the color of the water will change after the mix is added. This is evidence of a chemical change, as the color change indicates a reaction between the water and the substances in the drink mix.
3. If the powdered drink mix contains any sweeteners, the taste of the water will change after the mix is added. This is evidence of a chemical change, as the sweeteners in the mix react with the water to alter its taste.
4. The temperature of the water may change after the powdered drink mix is added, indicating a physical or chemical change depending on the specific ingredients in the mix.
5. Other physical changes, such as bubbles forming or fizzing, may also occur when the powdered drink mix is added to water, indicating a chemical reaction taking place.