SCIENCE 6 - HOMOGENEOUS MIXTURE.pdf

At the end of the lesson, you should be able to: 1. classified matter as pure substance or mixture; 2. determined the characteristics of mixtures  What is Matter? How matter is classified?  is a type of matter that contains only one kind of particles its properties are constant ca...

At the end of the lesson, you should be able to: 1. classified matter as pure substance or mixture; 2. determined the characteristics of mixtures  What is Matter? How matter is classified?  is a type of matter that contains only one kind of particles its properties are constant cannot be broken down by physical means consists of only one type of particle, either an element or a compound Example of pure substances: Elements - gold, silver, copper Compounds – sugar, salt, baking, soda  the simplest form of matter has the smallest component called the atom can be solid, liquid, or gas element is a pure substance that cannot be broken down into simpler substances by chemical means  Solid Liquid Gas has particles has particles has particles that are that can move that are packed closely and are in close widely together contact separated  When two or more elements are combined chemically, they form a compound. A compound already has a new set of properties. “both gases combined / same elements combined” “two elements combined”  formed when two or more combined materials still retain their own compositions either heterogeneous or homogeneous “uniform mixture”  a type of mixture where the components are evenly distributed throughout, and the composition is uniform means you cannot see the different parts, and the mixture looks the same throughout examples of homogeneous mixtures include salt dissolved in water, sugar dissolved in tea, and air. Heterogeneous Mixture Homogeneous Mixture does not have uniform has uniform composition composition throughout  a homogeneous mixture composed of the solute and solvent Solute - one that is dissolved Solvent - substances that dissolves Dilute solution (weak solution) happens when a solution contains a small amount of solute Key Points Pure substance – substance that cannot be broken by physical means Example of pure substances: Elements - gold, silver, copper Compounds – sugar, salt, baking, soda Key Points Mixtures – combination of two or more materials that cannot be separated by physical means 2 Types Homogenous Mixture – uniform Heterogenous Mixture – non uniform/diverse