Online STEM Workshop - Ocean Acidification скачать в хорошем качестве

Online STEM Workshop - Ocean Acidification

Ocean acidification is a threat to many species living in the ocean. Join Science Specialist Stena for an interactive, Facebook LIVE lesson about what ocean acidification is and why it's a threat to shell building species like clams and oysters. Gather up the supplies below beforehand and make your own predictions along the way! Supplies: Vinegar Cups/small containers/ice cube tray Materials you predict will dissolve in an acidic environment. I will be using a variety of materials including: wood chips, limestone, granite, clam shells, plastic beads, chalk, tums, coral, seaweed, aragonite sand, and silica sand. Paper Pencil In this lesson we will be making predictions about what materials contain calcium carbonate and then put those predictions to the test by observing whether or not they dissolve in vinegar. We will relate our observations to why ocean acidification has a detrimental impact on sea creatures that rely on calcium carbonate to build their shells.