Definitions:
- Chemical Change: A process where substances transform into different substances with distinct properties.
- Physical Change: A change that affects one or more physical properties of a substance without altering its chemical composition.
- Endothermic: A reaction or process that absorbs heat from its surroundings.
Short Story:
In a small town, Lily loved baking cookies. One day, she poured sugar, flour, and butter into a bowl. As she mixed, the dough took shape, a physical change that made her smile.
Later, she added baking soda, which caused the dough to rise and turn golden. The heat from the oven triggered a chemical change, creating delicious cookies.
While baking, the kitchen grew warm, but Lily felt a chill. She realized her mom turned on the ice cream maker, which was an endothermic process, absorbing heat.
After baking, Lily enjoyed cookies with cold ice cream, happy about her sweet creations.