SCIENCE GRADE THREE – STATES OF MATTER

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Presentation transcript:

SCIENCE GRADE THREE – STATES OF MATTER Changes Chemical reactions Dissolving Separation States of Matter Classification Change in appearance Properties Mixtures Essential Understandings: Changes occur all the time in the world around us Substances can be classified as solids, liquids or gases Solids, liquids and gases can be described by their properties Combining solids, liquids or gases, or a combination of these can make mixtures. Mixtures can be separated into their original components A substance can change in appearance, yet remain the same substance Some substances can be separated using a sieve, a filter, or the processes of evaporation and chromatography Dissolving can be affected by several factors When two or more substances are mixed, a chemical reaction may occur Vocabulary: Gas Liquid Molecule Property Solid