Julius Lothar Meyer is celebrated in today's Google Doodle, on what would have been the scientist's 190th birthday. The German chemist, professor and author was one of two scientists to independently ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...