variation
No. We don't know for sure but it's believed that she was changed at around 18-20 years old. But Bella often describes her as being as small as a 10 year old (I believe she's only like 4 foot 9 or 10 inches).
The duration of What Changed Charley Farthing? is 1.82 hours.
Yes. Alec changed before Jane because he was elder to her and Jane was too young to be changed into a vampire before Alec.
The duration of The Meeting Place Cannot Be Changed is 5.98 hours.
Approximately 1957.
variation
independent
The independent (or explanatory) variable is changed to test the prediction,
The variable that is changed by experimenter.
Flashback
David and Jamie's relationship evolved over time. Evolve means that something changed gradually. Sometimes when things evolve they are no longer recognizable.
a description of how each character was changed by the events of the story
describes how much each character was changed by the events of the story and provides an outcome to the central conflict. addie_mae
for Apex: the variable is an experiment that is manipulated by the scientist.
Less agriculture, more industry
The related link contains pictures and also describes how the hardware has changed
The social institution can be changed by the behavior and decisions of the people in the society. A+