Here's why:
* Composition: This refers to the specific elements and their proportions that make up a material. For example, water is always H₂O, no matter where you find it.
* Other Properties: Many properties of a material can change based on its environment:
* Temperature: Water boils at 100°C on Earth, but at a lower temperature on Mars due to lower atmospheric pressure.
* Density: The density of air changes with altitude, becoming less dense at higher altitudes.
* State of Matter: Water can be solid (ice), liquid (water), or gas (steam) depending on temperature and pressure.
Key Takeaway: The fundamental building blocks of a material (its elements and their ratios) are inherent to that material and don't change based on location.
