Matter part 2 types 2013
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Transcript of Matter part 2 types 2013
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MATTER – PART 2
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WHAT IS MATTER?
Matter - anything that has mass and takes up space
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Mass - the quantity of matter contained in an object
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Weight - measures force due to gravity
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How do we classify different types of matter?
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By Phase or State of Matter
Phase
Particle Properties
Proximity Energy Volume Shape
Solid
Liquid
Gas
close little fixed fixed
close moderate fixed not fixed
far apart a lot not fixed not fixed
Click here to view animation
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What is the difference between chemical and physical - changes and properties?
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Physical Property - a characteristic of a material which is observed without a new substance produced
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Examples - odor, color, volume, state (solid, liquid or gas)
melting or boiling point
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Physical Change - a change where no new substance is formed
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Examples - dissolving, tearing, hammering, phase changes or changes of state:
(solid ↔ liquid ↔ gas)
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Chemistry - the study of matter and its changes
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Chemical Property - a characteristic of a material which indicates its ability to form a new substance or not
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Examples - flammability, corrosion of metals, reacting with oxygen
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Chemical Change - a change that results in the production of a new substance, also called a reaction
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Examples - Burning, corrosion, baking a cake
CaO + CO2 → CaCO3
Reactants → Products
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Four General Signs of a Chemical Change
1. Gas formed2. Large energy change3. Precipitate formed4. Color change (change of odor & taste)