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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 |