[Notes] SCI 4 - 3: Changes in Matter

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Terms

TERMS:

Physical Change -change in size, shape, and state of matter - change in physical appearance

Chemical Change – brings about a new material with different properties

Ash – produced after a material is burned

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Physical Changes:

PHYSICAL CHANGES:

Melting - solid to liquid

Freezing - liquid to solid

Evaporation - liquid to gas – water vapor

Condensation - gas to liquid – clouds formation

Sublimation - solid to gas – dry ice, moothballs

Deposition - from gas to solid – frost, snow formation

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Chemical Changes:

CHEMICAL CHANGES:

Ripening – chemical change that happens in fruits

Rusting – chemical change that happens in iron

Spoiling – happens in fruits that is not consumed

Burning – turns matter into ash and carbon dioxide

Digestion – absorption of food nutrients

Photosynthesis – plants making food

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Evidence of CHEMICAL CHANGE

Evidence of CHEMICAL CHANGE

Release of light and heat – burning

Fizzing or gas formation – antacid, airborne tablet

Color Change - Fruit ripening, iron rusting, hair dying

Taste, odor and smell change - fruit ripening and decaying/spoiling