Lesson Notes By Weeks and Term v4 - JHS 1
MATERIALS
Download the Lessonotes Mobile Ghana app for faster lesson access on Android and iPhone.
MATERIALS
Download the Lessonotes Mobile Ghana app for faster lesson access on Android and iPhone.
Subject: Science
Class: JHS 1
Term: 1st Term
Week: 2
Grade code: B7.1.1.1.1
Strand code: 1
Sub-strand code: 1
Content standard code: B7.1.1.1
Indicator code: B7.1.1.1.1
Theme: DIVERSITY OF MATTER
Subtheme: MATERIALS
This page supports the lesson note with a companion video and a short classroom-ready summary.
For class groups and homework, share this lesson page so learners also get the summary, objectives, and full lesson context.
Everything around us is made of materials—water in a sachet, air we breathe, a wooden desk, cooking oil, LPG gas, stones, soap, and even the chalk we write with. In Ghana, knowing how to classify materials into solids, liquids and gases helps learners understand everyday activities such as cooking, storing water, using perfumes/aerosols, pumping tyres, and handling substances safely in the home, school, and community.
2.1 What is a Material? A material is any substance or matter that things are made from or that we can use. Examples: wood, water, air, iron, plastic, cooking oil, cement, charcoal. 2.2 States of Matter (Solids, Liquids, Gases) Materials exist mainly in three states: Solid Liquid Gas
We classify materials by observing their properties, especially: Shape (fixed or not fixed) Volume (fixed or not fixed) Flow (can it pour/spread?) Compressibility (can it be squeezed into a smaller space?)
2.3 Solids Definition: A solid is a material that has a fixed shape and a fixed volume.
Key properties of solids Fixed shape: A stone remains a stone shape unless broken. Fixed volume: A block of wood does not change volume easily. Do not flow: Solids do not pour like water. Not easily compressed: You cannot easily squeeze a stone into a smaller size.