Critique the "sense and nonsense" of the global $100 billion vitamin and supplement industry with Derek Muller in Vitamania. Then test your students' knowledge of the importance of vitamins in our diets, and the history of the business.
Sun, sand and surf. Just because we're having fun doesn't mean we can forget about safety. Rip currents account for 80 percent of beach rescues, and can be dangerous or deadly if you don't know what to do. Learn to stay safe with Bondi Rescue.