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science

QuestionAnswer
what does the law of conservation matter cannot be created or destroyed
In a closed system a container that is shut what happens to the mass it stays the smae
what is an element something made of only one kind of tiny particle
what is a compound made of two or more kinds of tiny particles joined together
what is a mixture something made of two or more things mixed together
what is a physical change when something changes shape or size but stays the same substance
when water freezes what do the particles do slow down and get closer
when water evaporates (turns`to gas), what do the particles do move faster and spread out
What do chemical reactions need to happen energy
During chemical reactions , what do the atoms do to make different subsatances rearrange
one type of matter substance
a combination of different substances mixture
characteristics of a substance or mixture that we can use to describe and identify the substance or mixture property
the amount of matter in a given space the particles of denser objects are more tightly packed than the particles of less dense objects density
describes how matter behaves flammability state at room temp property
the appearance and structure of matter characteristic
the most basic simplest structure of all matter atom
a type of atom or a molecule with one type of atom elementaion
atoms bonded together to moe one unit of matter molecules
a molecules of carbon dioxide is a compound mad eof one carbon atom and two oxygen atoms and A gas that is more dense than air Co2
a change in the way atoms are arranged that happens because chemical bonds are created or destroyed creates a different substances not new matter and know it happens when the matter's properties behaviors have changed chemical reaction
a change in the characteristics but not the identity of matter freezing boiling avaporating mixing physical change
the amount of matter in an object unit label grams g mass
the amount of space an object takes up unit label milliliters ml or liters l volume
Created by: Will845
 

 



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