1.   Heat rises because hot air is lighter than cold air.

2.   Heat rose from the depths, and every smooth cold surface was damp with condensation.

3.   When he slides them in front of us you can feel the heat rising.

4.   The summer heat rose off the pavement.

5.   The drill was screaming and an intense heat was rising from deep inside the shaft.

6.   Heat rose in his blood.

7.   Because heat rises, it might be a good idea to put in some louvered vents above the windows.

8.   But when the heat of the drama rises, the specimens become individuals with their own complex and memorable identities, often fixed in a vivid phrase.

9.   Heat can rise to near-sauna temperatures from the wood-burning stove, once it gets stoked.

10.   Heat rises.