Chapter 1
Matter
BIG IDEAS
• Everything around us is called matter. They are made up of tiny particles called atoms.
• Each matter has its own characteristics known as the properties of matter. The general properties of a material can be readily observed and measured. Special properties are the characteristics of a material based on its internal structure.
• Materials are grouped according to their characteristics.
• Materials must be handled properly. Flammable materials must be put away from the reach of children. Labels must be read before using the materials.
• Biodegradable materials can be disposed of by composting while nonbiodegradable materials can be disposed of by implementing the three Rs of waste management.
• Matter undergoes changes. Physical changes happen when matter changes in size, shape, and phase without forming a new substance. Chemical change happens when the chemical composition of the object is changed and a new substance is formed.
• Changes in materials affect the way of life of people as well as the environment.
• Changes improve the lives of people by introducing modern technology in agriculture, communication, and means of living.
• Each matter has its own characteristics known as the properties of matter. The general properties of a material can be readily observed and measured. Special properties are the characteristics of a material based on its internal structure.
• Materials are grouped according to their characteristics.
• Materials must be handled properly. Flammable materials must be put away from the reach of children. Labels must be read before using the materials.
• Biodegradable materials can be disposed of by composting while nonbiodegradable materials can be disposed of by implementing the three Rs of waste management.
• Matter undergoes changes. Physical changes happen when matter changes in size, shape, and phase without forming a new substance. Chemical change happens when the chemical composition of the object is changed and a new substance is formed.
• Changes in materials affect the way of life of people as well as the environment.
• Changes improve the lives of people by introducing modern technology in agriculture, communication, and means of living.
CHAPTER OVERVIEW
Everything that the students see around them is matter. Matter occupies space and has mass and weight. Each material possesses properties that make them different from one another. The students must realize the importance of knowing the characteristics of each material for them to handle it properly.
Materials may undergo physical or chemical changes. These changes may bring beneficial and harmful effects to human beings and the environment.
Materials may undergo physical or chemical changes. These changes may bring beneficial and harmful effects to human beings and the environment.
DESIRED RESULTS
Content Standard/s
The learner demonstrates understanding of
• grouping different materials based on their properties; and
• the changes that materials undergo when exposed to certain conditions.
• grouping different materials based on their properties; and
• the changes that materials undergo when exposed to certain conditions.
Performance Standard/s
The learner should be able to
• recognize proper handling of products according to their properties; and
• evaluate whether the changes in materials are useful or harmful to one’s environment.
• recognize proper handling of products according to their properties; and
• evaluate whether the changes in materials are useful or harmful to one’s environment.
Chapter Objectives
At the end of the chapter, the students are expected to
1. identify the properties of matter;
2. classify materials according to their properties;
3. explain the proper ways of handling different materials;
4. identify the importance of disposing materials properly;
5. describe the effects of changes that happen in an object;
6. classify the changes that happen in an object as useful or harmful; and
7. suggest ways of minimizing the harmful effects of changes in the environment.
1. identify the properties of matter;
2. classify materials according to their properties;
3. explain the proper ways of handling different materials;
4. identify the importance of disposing materials properly;
5. describe the effects of changes that happen in an object;
6. classify the changes that happen in an object as useful or harmful; and
7. suggest ways of minimizing the harmful effects of changes in the environment.