Materials · B2 Science

Lesson notes

Learning Objectives

Indicator: B2.1.2.2.1 - Describe the properties of solids, liquids, and gases

By the end of the lesson, learners can:

Identify at least three materials in their surroundings as solids, liquids, or gases based on observation
Describe the properties of solids (fixed shape, fixed volume, cannot be squeezed easily) using observable evidence
Describe the properties of liquids (no fixed shape, flows, takes the shape of the container) using observable evidence
Describe the properties of gases (no fixed shape, fills the whole container, can be squeezed/compressed) using observable evidence
Sort a given set of materials into solids, liquids, and gases with at least 80% accuracy

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Curriculum details

Strand: Diversity of Matter (Strand 1)
Sub-strand: Materials (1.2)
Content standard: B2.1.2.2 - Know that substances can exist in different physical states (solid, liquid, gas): many substances can be changed from one state to another by heating or cooling
Indicator: B2.1.2.2.1 - Describe the properties of solids, liquids, and gases
Suggested placement: Term 1, Week 6 (Week 6 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 Curriculum (Basic 1-3), 2019, p. 38
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

- Display different materials (real or pictures) in the solid, liquid or gaseous state, e.g. ice, water, vapour, fruit juice, oil and gravels.
- Learners observe the materials and describe their properties in terms of appearance, shape, flow, and how easily they can be squeezed, stretched and compressed.
- In groups learners sort out more materials into solids, liquids and gases.
- Demonstrate the formation of vapour (gaseous state) by boiling water.