Ice
Ice is water that is frozen into a solid state, typically forming at or below temperatures of 0 °C, 32 °F, or 273.15 K. It occurs naturally on Earth, on other planets, in Oort cloud objects, and as interstellar ice. As a naturally occurring crystalline inorganic solid with an ordered structure, ice is considered to be a mineral. Depending on the presence of impurities such as particles of soil or bubbles of air, it can appear transparent or a more or less opaque bluish-white color.
Extends: Ice, [Water ice](https://wikipedia.org.ai/Water ice), Glaciology, Minerals, [Transparent materials](https://wikipedia.org.ai/Transparent materials)
Properties
| Property | Expected Type | Description |
|---|---|---|
| Name | Text | Ice |
| Image | Text | Ice Block, Canal Park, Duluth (32752478892).jpg |
| Alt | Text | A picture of ice |
| Caption | Text | An ice block |
| Density | Text | 0.9167 –0.9168 g/cm3 |
| [Refractive Index](https://wikipedia.org.ai/Refractive Index) | Text | 1.309 |
| [Chemical Formula](https://wikipedia.org.ai/Chemical Formula) | Text | H2O |
| [Youngs Modulus](https://wikipedia.org.ai/Youngs Modulus) | Text | kg-force |
| [Tensile Strength](https://wikipedia.org.ai/Tensile Strength) | Text | 5 to 18 kg-force/cm2 |
| [Compressive Strength](https://wikipedia.org.ai/Compressive Strength) | Text | 24 to 60 kg-force/cm2 |
| [Poissons Ratio](https://wikipedia.org.ai/Poissons Ratio) | Text | 0.36 |
| [Thermal Conductivity](https://wikipedia.org.ai/Thermal Conductivity) | Text | 0.0053(1 + 0.0015 θ) cal/(cm s K), θ = temperature in °C |
| [Linear Expansion](https://wikipedia.org.ai/Linear Expansion) | Text | 5.5 |
| [Specific Heat](https://wikipedia.org.ai/Specific Heat) | Text | 0.5057 − 0.001863 θ cal/(g K), θ = absolute value of temperature in °C |
| [Dielectric Constant](https://wikipedia.org.ai/Dielectric Constant) | Text | ~95 |
| Footnotes | Text | The properties of ice vary substantially with temperature, purity and other factors. |