notes 1-3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| physical properties | characteristics that can be observed or measured without changing the makeup of the substance
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| examples of physical properties | mass, weight, volume, density, shape, size, color, smell, texture
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| physical change | a change that does not produce new substances
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| a phase change is | a physical change
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| chemical properties | characteristics that can only be observed by changing the makeup of the substance
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| chemical change | a change that produces new substances
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| what happens to the matter in a physical change | the matter is the same. the original matter can be recovered.
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| what happens to the matter in a chemical change | the matter is different. the old matter is no longer present. the original matter can not be recovered.
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| what happens to the particles in a physical change | the particles are simply re-arranged
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| what happens to the particles in a chemical change | the particles of the substance are broken apart, and the atoms are re-arranged into new particles, forming a new substance
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| mixture | two or more substances that have been combined physically not chemically
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| mixtures can be separated by | physical means
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| homogeneous mixture | a mixture in which all substances appear one color
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| heterogeneous mixture | a mixture in which all substances have more than one color
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| filtration | separates bigger particles from smaller particles
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| evaporation | some particles turn to gas and others stay behind
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| distillation | evaporating a a liquid and then condensing it again
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| magnitism | separating a mixture where one substance has magnetic properties
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| solution | a mixture in which one substance is dissolved in another substance
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| dissolve | to mix evenly
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| soluble | able to dissolve in water
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| insoluble | unable to dissolve in water
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| solute | the substance that does the dissolving
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| solvent | the substance in which a solute disolves
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| universal solvant | water
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| polar molecule | a molecule in which one end has a positive charge and the other has a negative charge
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| aqueous solution | a solution where liquid water is a solevent
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| gaseous solution | a solution in which a solid, liquid, or gas is dissolved in a gas
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| solid solution | a solution in which a solid, liquid, or gas is dissolved in a solid
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| stirring | allows solute particles to squeeze in between solvent particles
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| crushing | breaks particles into smaller pieces
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| heating | makes particles move faster and farther apart
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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