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 ...

Last year, there was the temperature spiral. This year, it’s the temperature circle that’s making the trend of global warming crystal clear. A new video shows the rhythm of global warming for ...

Imagine you are shot or stabbed and losing a massive amount of blood. Simply put, your chances of survival with ongoing blood loss are slim: the likely outcome from such serious trauma is profound ...