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Stack #171158
Question | Answer |
---|---|
absolute zero | coldest temperature possible, particles have no motion |
absorption | moving food molecules from the gut to the blood |
absorption | occurs when light waves are captured by an object |
acceleration, a | increase in speed of an object |
acid | substance that turns litmus paper red or pink; releases hydrogen ions when in solution |
acid particles | particles that an acid releases when in solution; hydrogen (H+) ions |
acidic properties | properties of a family of chemicals called acids |
acidic rain | rain that is more acidic than normal |
acidic solution | solution with an excess of acid particles (hydrogen ions, H+) |
acidity | strength of an acidic solution |
action | reaction |
adaptation | feature that enables an organism to survive and reproduce |
aerobic respiration | type of respiration that occurs when oxygen is abundant |
alkali | a base that will dissolve in water; substance that turns litmus paper blue |
alkaline solution | solution with a pH above 7 |
alkalinity | strength of an alkaline solution |
alloy | mixture of a metal and other chemicals |
alternating current | current that keeps changing direction |
alveoli | tiny air bags in lungs where gas exchange occurs |
amino acid | small molecules that proteins are made out of |