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Chapter 1 Notes The Properties of Matter
What is Matter?Matter is anything that has Mass and
Volume
Mass is the amount of matter an object contains.◦Units: grams (g), kilograms (kg)
Volume is the amount of space an object takes up.◦Units: liters (L), milliliters (mL), cubic
centimeters (cm3)
Vocabulary YOUneed to know!
Meniscus
Physical vs. Chemical Properties
Physical PropertiesPhysical properties can be observed or measured
without changing the identity of the matter.
Examples:◦ Color◦ Odor◦ Mass◦ Volume◦ Density (Density = Mass/Volume)◦ State – Solid, Liquid, or Gas?◦ Malleability – Can I flatten it?◦ Ductility – Can I stretch it into a thin wire?◦ Solubility – Can I dissolve it in something?◦ Thermal Conductivity – Does it carry heat?
Chemical PropertiesChemical properties describe a
substance’s ability to change into a new, different substance.
Examples:◦Flammability – Does it burn?◦Reactivity – Does it react when
mixed?
Characteristic PropertiesCharacteristic properties are always the
same, whether the object is large or small.
Characteristic properties can be physical or chemical.
Examples:◦Density◦Solubility◦Reactivity
Physical ChangesIn a physical change, a physical
property changes, but the identity of the substance does not change.
Physical changes are sometimes easy to undo
Examples: ◦Melting ice or boiling water◦Ripping paper into pieces◦Dissolving sugar into water
Chemical ChangesIn a chemical change, a substance
changes into a different substance.
Chemical changes are usually difficult to undo.
Examples:◦Burning wood or “snakes”◦Spoiling milk (curdling)◦Rusting metal
http://www.gamequarium.org/dir/Gamequarium/Science/Physical_and_Chemical_Changes/