Water:
- Water molecules are non-linear and polar molecules because the H and O atoms are different in size and electronegativity.
- They form hydrogen bonds with other water molecules.
- Some properties include…
| Property | Explanation |
| Excellent solvent | Essential role in transport of molecules in biological systems. |
| Less dense as a solid | Ice insulates water beneath it, protecting marine life from freezing. |
| High SHC | Cells do not heat up or cool down easily, thus has a homeostatic/stable temperature. |
| Transparent | Allows marine life to exist as photosynthesis can occur underwater as well as gas exchange. |