Question

List four effects that heat produces.

Answer 1

Four effects of heat are as follows:

1. Change in temperature - When water is heated, its temperature increases and it starts boiling.
2. Change in State - On boiling water, steam is evolved, i.e., the its liquid state changes to its gaseous state.
3. Expansion - While heating water, some of it overflows due to expansion, i.e., increase in volume.
4. Chemical change - When vegetables are boiled in water while cooking, they become soft and their taste changes. Thus, a chemical change occurs in the vegetables.