Physical & Chemical Properties PDF

# Physical & Chemical Properties & Changes ## Essential Question: How can matter be characterized and changed? ### Topic Questions: **1. What are physical properties of matter?** - **Luster:** Shiny metallic. - **Color:** Gold. - **Texture:** Smooth. **2. What are size-dependent physical proper...

# Physical & Chemical Properties & Changes ## Essential Question: How can matter be characterized and changed? ### Topic Questions: **1. What are physical properties of matter?** - **Luster:** Shiny metallic. - **Color:** Gold. - **Texture:** Smooth. **2. What are size-dependent physical properties?** - **Mass:** A measure of the amount of matter that makes up an object. - **Volume:** The amount of space occupied by an object or substance. - **Weight:** A measure of the force of gravity acting on an object's mass. **3. What are size-independent physical properties?** - **Melting & Freezing Point:** The temperature at which a substance changes from a solid to a liquid or vice versa. - **Boiling Point:** The temperature at which a substance changes from a liquid to a gas. - **Solubility:** The ability of one substance to dissolve into another. - **Conductivity:** The ability of matter to carry an electric current or thermal energy. - **Density:** The amount of mass per unit of volume of a substance. - **Magnetism:** The motion of electric charge resulting in attractive and repulsive forces. - **Viscosity:** A liquid’s resistance to flow. **4. What are chemical properties of matter?** - **Flammability:** The ability to support burning. - **Reaction with Oxygen:** A reddish-brown flaky coating of iron oxide (rust). - **Reaction with Sulfur:** A dullness of color or loss of brightness (tarnish). - **Acidity:** The amount of hydrogen or hydronium ions present in a solution. - **Note:** In order to observe these chemical properties, you have to permanently change the matter **5. What are some examples of chemical properties?** - **Flammability:** The ability to support burning. - **Reaction with oxygen:** A reddish-brown flaky coating of iron oxide (rust). - **Reaction with sulfur:** A dullness of color or loss of brightness (tarnish). - **Acidity:** The amount of hydrogen or hydronium ions present in a solution. **6. What is a physical change?** - A physical change is when a substance changes in form of appearance, but a new substance is not formed. - This type of change can be considered "reversible". **7. What is a chemical change?** - A chemical change is when a change in a substance produces one or more new substances that have different properties than the original. - This type of change is considered "irreversible". ### Sum It Up! **Physical Properties:** - **Size-Dependent:** - Mass - Volume - Weight - **Size-Independent:** - State of Matter - Luster - Melting Point - Color - Conductivity - Magnetism - Solubility - Density - Hardness - Viscosity **Chemical Properties:** - **Reaction with Oxygen** - **Reaction with Sulfur** - **Flammability** - **Acidity** **1. Use the word banks to write the physical and chemical properties in the blanks below:** **2. Circle the word having to do with a physical change: ** - **Reversible** - **Irreversible** **3. Circle the word having to do with a chemical change: ** - **Reversible** - **Irreversible** **4. Label the action in each picture as a physical change (P) or a chemical change (C) :** - Melting ice: (P) - Browning apple: (C) - Baking bread: (C) - Digesting pizza: (C) - Dissolving sugar: (P) - Spraying hairspray: (P)