51ºÚÁÏ

This is the first of 5 lessons aimed at giving students from year 7 a good grounding in atoms and elements.
The lesson covers the origin of the word atoms, the definition of atoms, the original ideas about the indivisibility of atoms. It introduces students to the 3 subatomic particles and the importance of each to the atom.
The lesson introduces elements and the purity of elements. It explains why elements are different from each other. The early idea that there were just 4 elements that combined to make up everything that exist.
The lesson introduces students to the occurrence of elements, a video link to when individual elements were discovered so that they can appreciate that elements were not all discovered at the same time. Students are also introduced to how elements are extracted.Students learn that elements can be classified in many ways; metals, non-metals, solid, liquid or gas. It provides students an interesting understanding of how elements obtained their names. There is an ICT activity that students can complete as homework to research examples of elements named by different categories. The link between the symbol of an element and its names, highlighting why the symbol of an element like potassium is K , meanwhile there no K in the English name for the element.
Each slide has an audio to help students who would like to listen and read at the same time.
The lesson finishes with a summary fill in the gap worksheet that students complete. Answers provided.