Anywhere below freezing, or 32 degrees.
You can you change liquid water into a solid (ice) by lowering its temperature. You can you change liquid water into a gas (water vapor) by raising its temperature.
Water
The dye will not affect the temperature of the water unless you have very small quantities of water. There can be a change of temperature when a solid dissolves but we are unlikely to observe this if there is a small amount of solid compared to the volume of water. If you are using less than a cup of water you may observe a temperature change.
Yes. Every solid has a melting temperature above which (hotter) it is a liquid and beneath which (colder) it is a solid. Answer For example, water becomes ice at zero degrees Celsius / 32 degrees Fahrenheit. That temperature is the melting temperature for ice. Hotter than that temperature will turn ice into water, and colder than that temperature will turn water into ice. 0 degrees Celsius is also called the triple point because water, ice, and water vapor can all exist at that temperature without changing their forms. In other words, at that temperature, ice can stay ice, water can stay water, and water vapor can stay water vapor.
Water remains a liquid over a large temperature range.
At this temperature water is a solid.
Water is not solid at room temperature, unless the room is also a freezer.
You can you change liquid water into a solid (ice) by lowering its temperature. You can you change liquid water into a gas (water vapor) by raising its temperature.
Water is evaporated at any temperature but a high temperature favors evaporation.
a solid.....
The melting point is the temperature at which any solid turns into a liquid. For water, the temperature is 0 degrees C or 32 degrees F.
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0 Celcius
An amorphous solid softens over a temperature range, but a crystalline solid has a sharp melting point.
Water is evaporated at any temperature but a high temperature favors evaporation.
It depends on what the solid is.(This is answered by a 12 year old)
The temperature range would be greater on the land of a desert.