* Density: Water has a density of approximately 1 gram per milliliter (g/mL) at 4°C. This means 1 mL of water weighs 1 gram.
* Temperature: The density of water changes slightly with temperature. At higher temperatures, water expands and becomes less dense.
Therefore:
* At 4°C: 100 mL of water will weigh precisely 100 grams.
* At other temperatures: 100 mL of water will weigh slightly more or less than 100 grams depending on the temperature.
Important Note: This relationship between volume and mass only applies to pure water at specific temperatures. Other substances have different densities.
