2. Learning Objectives:
The learners demonstrate understanding of
materials undergo changes due to oxygen and
Investigate changes that happen in materials
under the following conditions; presence or lack
of oxygen and application of heat. And;
Identify the physical properties of solid
materials such as ductility, malleability, flexibility,
elasticity, porosity, hardness and brittleness.
3. Activity #1:
Classify each materials as useful or harmful.
Old news paper
4. Let us Review 💡
Identify the following objects as solid, liquid, gas.
Write your answer on the blank after the number.