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Classification of Matter. Science 9. What is Matter?. Matter is anything with both mass and volume Matter can be classified as pure substances or mixtures. Pure Substances. Consist of only one kind of matter Has the same properties throughout
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Classification of Matter Science 9
What is Matter? • Matter is anything with both mass and volume • Matter can be classified as pure substances or mixtures
Pure Substances • Consist of only one kind of matter • Has the same properties throughout • Elements and Compounds are types of pure substances
Elements • Contains only one kind of atom (basic unit of matter) • Cannot be broken down into a simpler substance • Example: Gold
Compound • Contain only one kind of molecule • Made up of 2 or more elements chemically combined • Examples: Water
Mixtures • Consists of 2 or more pure substances • Notchemically combined. • May be separated by physical means ex. filtering, heating, sorting
Types of Mixtures • Homogenous Mixtures • Solutions • Heterogeneous Mixtures • Mechanical Mixtures • Suspension
Homogeneous Mixtures • Uniform composition (the same) • Different components of the mixture cannot be seen. • Solutions (Salt water, coffee, air…) • Alloys (Steel)
Heterogeneous Mixtures • Not uniform in composition • Mechanical Mixtures: can see two or more parts of mixture (cereal in milk, pizza, granola, salad, rocks…) • Suspension: Solid pieces scattered throughout liquid (milk, tomato juice)
PG.156 #1, 2,4 and 7-11 • Picture dictionary (due next Wed)