KS3 ~ Year 7 ~ Chemical Formulae

This lesson is designed for the Activate KS3 Science Course, specifically Year 7 C1.2 ’Elements, Atoms & Compounds’.

For more lessons designed for KS3 and KS4 please visit my shop at: https://www.tes.com/teaching-resources/shop/SWiftScience.

Students are firstly asked to complete a worksheet which is a recap on what they have learned prior to this lesson on the differences between elements, compounds and mixtures. Once this task is complete students can self-assess their work using the mark scheme provided.

Next, students are introduced to some of the basic concepts of naming compounds. Students are shown a particle diagram of a carbon monoxide molecule and a carbon dioxide molecule and are asked to ‘Think > Pair > Share’ their ideas about which is which. The answer is then revealed and students are shown that molecules with an atom of one element alongside an oxygen atom are called ‘oxides’, those with one oxygen atom are called monoxides and those with two oxygen atoms are dioxides.

Students are now given a table with some information missing out of it, students will need to identify either the name of a compound or the elements that are found within a named compound. Once complete, the task can self-assessed using the mark scheme provided in the PowerPoint presentation.

The next part of the lesson focuses on chemical formulae, students are shown what the chemical formula of a substance tells us about that compound, in terms of the relative number of atoms of each element found in that compound.

Students will then need to complete a worksheet to assess their knowledge of what they have learned so far this lesson, first part requires students to name the elements found in a set of compounds given the name or the chemical formula. Second task requires students to identify the number of atoms of each elements in a set of compounds. Once this task has been completed, students can self-assess their work using the mark scheme provided.

The plenary requires students to write a five minute account of what they have learned this lesson, including what they know now and what they would like to spend more time on.

All resources are included at the end of the presentation. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)