Before the passage of the Indian Removal Act, some Plains Native American tribes were often looking for better hunting grounds. After the Indian Removal Act, most tribes
southeastern United States. The US government usually forced these tribes to give up their lands.
to Indian Territory. These tribes
from their lands in the

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal