Students will be able to plan and carry out an investigation to compare the solubility of different substances, and develop and explain a particle-level model to describe the process of dissolving.

Introduction Have you ever added a spoon of sugar to your tea and wondered why it disappeared? Where did it go? The sugar did not actually disappear—it changed from its solid form into a dissolved ...

Introduction What is your favorite type of candy? Have you ever wondered why you like this candy so much? Is it its taste, how it feels in your mouth—or both? Cooks and food scientists study how ...