Lessons 3, 4, 5

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término		definición
physical change empezar lección		a change that begins and ends with the same type of matter
chemical change empezar lección		a change that begins with one type of matter and ends with a new type with none of the properties of the original matter
alloy empezar lección		a substance that is mixed with a metal to make it stronger
When you crumple paper, that is a empezar lección		physical change
When you burn sugar, you end up with empezar lección		water vapor and carbon
I rust a physical or chemical change? empezar lección		chemical
Ice to water is what kind of change? empezar lección		physical

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