Materials · B1 Science

Lesson notes

Learning Objectives

Indicator: B1.1.2.2.1 - Identify and classify materials as solid, liquid or gas

By the end of the lesson, learners can:

Name at least five materials found in their classroom or home and state whether each is a solid, liquid or gas.
Sort a given set of materials into the three states of matter: solid, liquid and gas, giving at least one reason for each choice.
Demonstrate the presence of gas in the air by using a paper card or sheet of paper to feel air movement.
Explain in their own words one difference between a solid and a liquid, and one difference between a liquid and a gas.
Give at least one example of a material that can be changed from one state to another by heating or cooling, such as water turning to ice or steam.

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Curriculum details

Strand: Diversity of Matter (Strand 1)
Sub-strand: Materials (1.2)
Content standard: B1.1.2.2 - Know that substances can exist in different physical state (Solid, Liquid, Gas). Many substances can be changed from one state to another by heating or cooling
Indicator: B1.1.2.2.1 - Identify and classify materials as solid, liquid or gas
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.
Curriculum reference: Science Curriculum (Basic 1-3), 2019, p. 23
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

- Learners explore and list materials they see in their environment.
- In groups, sort the materials into solid, liquid or gas. NB: to demonstrate the presence of gas, learners can use paper cards /sheets of paper and wave them across their faces.
- In groups learners sort different substances into the solid, liquid or gaseous states with reasons.
- Each group presents their work to the whole class for discussions.
- Learners answer the following questions: What makes a solid different from a liquid? How is a liquid different from a gas?
- Learners can be engaged in more activities to investigate and identify substances in the solid, liquid and gaseous states. E.g. inflating balloon, breathing in and out.