Materials · JHS3 Science

Lesson notes

Learning Objectives

Indicator: B9.1.1.2.1 - Recognise that chemical bond results from the attraction between atoms in a compound

By the end of the lesson, learners can:

Define a chemical bond as the force of attraction between atoms that holds them together in a compound.
Identify the three main types of inter-atomic bonds (ionic, covalent, and metallic) by name.
Describe, in simple terms, how ionic, covalent, and metallic bonds form.
Classify common substances (such as table salt, water, and iron) according to the type of bond they exhibit.
Explain why atoms form bonds by referring to the tendency of atoms to become stable.

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Curriculum details

Strand: Diversity of Matter (Strand 1)
Sub-strand: Materials (1.1)
Content standard: B9.1.1.2 - Demonstrate knowledge of atomic bonding in the formation of chemical compounds
Indicator: B9.1.1.2.1 - Recognise that chemical bond results from the attraction between atoms in a compound
Suggested placement: Term 1, Week 2 (Week 2 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: Science, Common Core Programme (JHS1-JHS3), 2023, p. 89
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

1. Identify types of inter-atomic bonds.
2. Describe the formation of inter-atomic bonds.
3. Identify examples of substances that exhibit ionic, covalent and metallic bonding.