My daughter-in-law plugged in a heater in her room and tripped a circuit breaker. I went to the box to reset but none of them were tripped. So I turned all of them to off and on, but still no power in her room , another bedroom, a bathroom and hallway electrical outlets between the rooms. Not knowing what circuit breaker it was on, I tested all the breakers with a meter and all were receiving electricity. The power works in the rest of the house but not in the locations mentioned above. What gives?

Ooh I know this one. It tripped a gfci outlet. Check your bathroom and kitchen, reset all the gfci's and it should come back on.