Curated OER
Growing A Coral Skeleton
Students research the growth of coral. In this coral polyps lesson, students simulate the growth of coral by using available materials to grow crystals. Students record observations in a scientific journal.
Curated OER
Properties of Salt
Students see how the properties of salt affect the color of flame, the flow of electricity, and the freezing temperature of water. They identify salt and sugar crystals under a microscope and discuss various practical uses of salt.