Materials · B4 Science

Lesson notes

Learning Objectives

Indicator: B4.1.2.2.1 - Identify a liquid-liquid mixture and describe how to separate its components

By the end of the lesson, learners can:

Identify different types of liquids by observing their colour, smell, and appearance.
Mix liquids of the same kind and different kinds, then record what they observe.
Distinguish between miscible liquids (those that mix uniformly) and immiscible liquids (those that do not mix uniformly).
Describe a simple method for separating immiscible liquids, such as oil and water, using a separating funnel or an improvised version.
Explain why some liquids mix together while others remain as separate layers.

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Curriculum details

Strand: Diversity of Matter (Strand 1)
Sub-strand: Materials (1.2)
Content standard: B4.1.2.2 - Understand mixtures, their types, formation, uses and ways of separating them into their components
Indicator: B4.1.2.2.1 - Identify a liquid-liquid mixture and describe how to separate its components
Suggested placement: Term 1, Week 7 (Week 7 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.
Source document note: The official curriculum document has a fault in this entry, so the curriculum text above is transcribed exactly as printed:

indicator text - p.4: sub-strand 1.2 (MATERIALS) opens at content standard B4.1.2.2; the document prints no B4.1.2.1 and no indicator under it anywhere in B4
Curriculum reference: Science Curriculum (Basic 4-6), 2019, p. 4
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

- Display different types of liquids for learners to observe, e. g. water, kerosene, cooking oil, milk, soft drinks, etc.
- Task learners to identify the liquids provided.
- In groups, learners mix liquids of the same kind, different kinds and then observe and record their findings, e.g., vinegar and water, palm oil and water, etc.
- Engage learners in discussion to describe the different types of liquid-liquid mixtures. [Those which are able to mix uniformly (miscible liquids) and those which are not able to mix uniformly (immiscible)].
Project: Separation of a mixture of immiscible liquids. Learners investigate to separate a mixture of immiscible liquids such as cooking oil and water.
NB: This activity can be undertaken with the aid of a separating funnel or an improvised version of it. Do not bring liquids that are flammable or poisonous to class for this lesson.