一、Homogeneous And Heterogeneous 托福听力原文： NARRATOR: Listen to part of a lecture in a chemistry class. MALE PROFESSOR: So, just to sum up, matter is anything that has mass and volume, right? Anything ...

A homogeneous mixture is also known as a solution. It is a substance composed of two or more substances that are distributed uniformly at a molecular level or microscopic. In easier terms, homogeneous ...

Students will learn how to categorize matter as either pure substances or mixtures. Students will apply tests, based on physical properties of matter samples, to determine whether a mixture is ...

The film discusses the classification of matter into homogeneous and heterogeneous types, focusing on elements, compounds, and mixtures. It explains the properties of two elements, iron and sulfur, ...