In real life, no, that was a fictional event.
hen finds out her mother died in a bus accident
Sal finds the bus that crashed, killing her mother.
Bus 244, 246, 247
The interior of the bus is cooler than outside the bus because of the air conditioner. Water vapour outside in the air touches the cooler surface of the window of the bus and condenses to form water droplets on the window.
take the bus or go thorugh the forest
The lone survivor of the bus crash that killed Sal's mother in "Walk Two Moons" was Margaret Cadaver, who was the bus driver. She suffered injuries but survived the crash.
In the book "Walk Two Moons" by Sharon Creech, Sal and her grandparents survived the bus crash. Unfortunately, Sal's mother was on the bus and did not survive the accident.
Grafton bus crash happened in 1989.
Kempsey bus crash happened in 1989.
Bethlehem bus crash happened in 2003.
Mirsharai bus crash happened in 2011.
Maltrata bus crash happened in 2006.
Sinai bus crash happened in 2006.
Lauffen bus crash happened in 1959.
Tam Duong bus crash happened in 2005.
Abuja bus crash riots happened in 2000.
World Wide Tours bus crash happened on 2011-03-12.