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Basic review
| Question | Answer |
|---|---|
| if you take away a piece of a material does the density decrease | no |
| Is air pressure greater at lower altitudes, why | yes beacuase air desity is greater there |
| what are most changes | cyclic like a water cycle |
| seasons tides and moonphases are predictable yes or no | yes |
| as temperature increases what happens to density | It decreases |
| what is the exception to the temperature increase and denstiy decrease | water, because it expands when it is frozen |
| what temperature is water most dense at | 4 degrees celceius |
| does everything in nature move from high to low | yes |