Ch 1 Introduction to Matter Lesson 1 Describing

Ch 1: Introduction to Matter Lesson 1: Describing Matter

What Properties Describe Matter? In Science, Matter is anything that has mass and takes up space. All the “stuff” around you is matter , and you are matter too! Air, plastic, metal, wood, glass, paper, and cloth are all matter. Matter can have many different properties, or characteristics that can be used to identify and classify it. Materials can be hard or soft, hot or cold, liquid, solid or gas. Chemistry is the study of matter and how matter changes.

Substances Some types of matter are substances and some are not. A substance is a single kind of matter that is pure, meaning it always has a specific makeup or composition.

Physical and Chemical Properties of Matter is described by its properties. Every form of matter has two kinds of properties - physical properties and chemical properties. A physical propertyis a characteristic of a substance that can be observed without changing it into another substance. A chemical propertyis a characteristic of a substance that describes its ability to change into different substances

Examples Physical Properties 1. Melting 2. Freezing 3. Dissolving 4. Color 5. Shape 6. Size 7. Mass 8. Texture 9. Hardness 10. Luster 11. Electrical & thermal conductivity Chemical Properties 1. 2. 3. 4. Burn Rust Tarnish ferment