Ali Grade 5
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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| Changes in Matter | Physical Change - same chemical properties Chemical Change - matter changes, different properties. solid, liquids and gases are all changes of matter.
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| Physical Changes | Changes in size,shape, and state of matter.raindrops and sleet are both water but look different, same chemical properties.
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| Chemical Changes | One kind of matter changes into something different, matter changes different properties.
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| evaporation | it takes place when particles leave a liquid and become a gas.
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| condensation | occurs when a gas turns into a liquid
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| sublimation | solids that change directly to gases without first becoming liquids in a process dry ice is one example
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| reactant | a substance used in the reaction
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| product | a substance made by the reaction
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| chemical equation | shows what happens during a chemical reaction
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| phases | solid, liquids, and gases are all a phase. another word for phase is a state.
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| collide | to bang into another, it can even crash into another
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| ores | types of rock that include metals
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| evidence of chemical changes | burning, crystals form, may produce a gas or solid
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| states of matter | solids, liquids, and gas are a state of matter.
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| solids and liquids | water is a liquid when unfrozen and a solid when frozen.
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| freezing and melting | freezing is when a liquid turns into a solid and melting is when a solid goes into liquid
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| particles in motion | materials change size when they change temp. Generally smaller when cooler and larger when warmer.
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| gases | it's compared to solid and liquids, particles of a gas are very far apart
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| chemical reactions | Reactants react to make products
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| matter is always conserved | it can not be created or destroyed during a chemical reaction.
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| types of chemical reactions | 3 types: combination, decompostion, replacement reactions
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| examples of chemical reactions |
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| separating mixtures | it can be hard to chip limestone from a fossil without damaging the fossil need example
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| separating mixtures from ores | people may use chemical properties to separate metals from their ores
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| separating solutions | sometimes chemical properties can be used to separate elements from solutions
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| identifying substances | indicator paper is helpful, though, in providing clues to identify of a substance.
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| decomposition reaction | compounds split apart to form smaller compounds or elements
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| combination reaction | elements to compounds come together to form new compounds
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| replacement reaction | the part that switch places
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| bases and acids | bases cause universal indicator paper to turn shades of green, blue, and purple. acids make the paper turn orange or red
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Created by:
alikat
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