Properties of Matter Guided Notes • Physical properties can be ______________________________. • Examples: Practice Problem: List the physical properties of Aluminum. List the physical properties of Steel. • Which is best suited for a lightweight can of pop? • Which is best suited for a can of green beans that need to be stacked in piles for months? • A substance has ____________________ physical properties that _______________________ it. A Physical Property: Density • Define Density - _____________________________________________________________________ • Write the math equation for Density: Practice Problem: Which is denser? Practice Problem: Calculate the density of a CUBE of steel. Mass = 88g 2 cm Practice Problem: Describe how you would find the density of a CYLINDER of steel. Magic Eggs Example Complete the sentence: Objects that are MORE dense __________. Objects that are LESS dense __________. List the 3 States of Matter: 1. _______________________ 2. _______________________ 3. _______________________ • SOLID - ____________________________________________________________________________ • LIQUID - ____________________________________________________________________________ • GAS - ____________________________________________________________________________ Chemical Properties • Examples: • Chemical Properties can only be observed when ________________________________________________. Practice Problem: Describe how you would find the density of a CYLINDER of steel. Substance Alcohol Clear liquid Flammable Red Dye Red liquid Reacts with Chlorine and loses color Baking Soda White powder Reacts with Vinegar Chemical & Physical CHANGES • A chemical change results in a ______________________ substance with _____________ _____________. Examples: • A physical change results in the_____________________ substance with _____________ _____________. Examples: Practice Problem: Identify these as Physical or Chemical Changes… Cutting Your Hair Dissolving Sugar in Water Burning Wood Rust Forming on Metal Separating a Mixture Battery “Dies” State Changes are Physical Changes How does the temperature change as you melt and then boil an ice cube? • On the graphs below, label the areas where a PHASE CHANGE is occurring.