When two atoms or molecules that are attracted to each other are together, it takes energy to break them apart. When two atoms or molecules that are attracted to each other are apart, energy is ...

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 ...

When it comes to gas-guzzling engines, the American automotive industry is known for building some of the best V8s of all time. However, US manufacturers have also developed some legendary diesels, ...