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| Question | Answer |
| What is diffusion? | Spreading of molecules from an area of high concentration to an area of low concentration |
| Diffusion takes place along... | A concentration Gradient |
| what is the concentration gradient? | The measurement of concentration in a specific region, usually comparing to another region. |
| What is density? | A physical property that shows relationship between mass and volume |
| How does density work? | More volume and less matter------> less denser Less volume and more matter (particles are closer) ------> more dense Finding the density is based on atomic mass and distance between particles |
| what is convection? | movement of heat energy in fluids |
| how does convection work? | The heated particles move/rise to areas of low heat and they expand until the heat is lost and new heated particles take its place while it settles down. |
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