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Stack #171158

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Question
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absolute zero   coldest temperature possible, particles have no motion  
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absorption   moving food molecules from the gut to the blood  
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absorption   occurs when light waves are captured by an object  
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acceleration, a   increase in speed of an object  
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acid   substance that turns litmus paper red or pink; releases hydrogen ions when in solution  
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acid particles   particles that an acid releases when in solution; hydrogen (H+) ions  
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acidic properties   properties of a family of chemicals called acids  
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acidic rain   rain that is more acidic than normal  
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acidic solution   solution with an excess of acid particles (hydrogen ions, H+)  
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acidity   strength of an acidic solution  
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action   reaction  
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adaptation   feature that enables an organism to survive and reproduce  
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aerobic respiration   type of respiration that occurs when oxygen is abundant  
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alkali   a base that will dissolve in water; substance that turns litmus paper blue  
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alkaline solution   solution with a pH above 7  
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alkalinity   strength of an alkaline solution  
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alloy   mixture of a metal and other chemicals  
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alternating current   current that keeps changing direction  
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alveoli   tiny air bags in lungs where gas exchange occurs  
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amino acid   small molecules that proteins are made out of  
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Created by: JoS
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