For science we watched a video and it was called Hunting the Elements. It was about the elements and stuff. A couple things I learned were that calcium isn’t actually white and chalky it is  a silver, shiny metal. And that a human body is 65% oxygen, thats a lot. And that neodymium is a rare earth metal that actually repels sharks. And my favorite part was when they showed how neodymium can actually repel sharks. And how it will help fishers to catch just fish instead of sharks.