Earth Science · B2 Science

Lesson notes

Learning Objectives

Indicator: B2.2.1.4.1 - Find out the qualities of good drinking water

By the end of the lesson, learners can:

Mention at least three sources of water that people drink and use in their homes and communities.
Examine samples of water from different sources and describe what they observe about colour, odour and solid particles using a hand lens and their sense of smell.
State the three qualities of good drinking water: no colour, no odour and no solid particles.
Explain what could happen to a person who drinks water that has particles, colour or a bad smell.
Compare different water samples and identify which ones are safe for drinking based on the qualities learned.

Sign in with your phone number to read the full note and download the GES plan - free.

Sign in with phone number

Curriculum details

Strand: Cycles (Strand 2)
Sub-strand: Earth Science (2.1)
Content standard: B2.2.1.4 - Recognise water and air as important natural resources
Indicator: B2.2.1.4.1 - Find out the qualities of good drinking water
Suggested placement: Term 1, Week 12 (Week 12 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 - pp.39-40: sub-strand 2.1 runs B2.2.1.1, B2.2.1.2 then B2.2.1.4; the document prints no content standard B2.2.1.3 and no indicator under it anywhere in B2
Curriculum reference: Science Curriculum (Basic 1-3), 2019, p. 40
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

- Learners mention the sources of water we drink and use in their homes and communities.
- Supply learners with samples of water from different sources, i.e. river, pond, well and bottled water. Caution: learners should not taste any of the water samples.
- In groups learners examine the water samples for the following: solid particles (using hand lens), colour and odour (smell). Each group presents their findings.
- Display to learners, samples of good drinking water and assist them to infer that good drinking water has no colour, and no odour and is free from solid particles
- Learners explain what will happen when they drink water that has particles, odour and colour in it