This is for science project but ... What is a 3 minute speech I can use to explain the science behind this investigation ...

Does the water need to be cold or hot to make smoke?

Answer:Whether hot or cold smoke of fog us formed

Explanation:for cold water

in order for steam fog to form, the overlying air has to be between 5° to 40° Celsius colder than surface water temperatures.

For hot water the temperature of the water has to be between50-100 degree Celsius to form steam.