Descriptive investigations involve collecting data about a system, but not making tests or experiments.
Making tests belongs to experimental investigations.
Descriptive investigations aim to draw conclusions from observations of the fenomena, while experimental investigations design tests that let the researcher to compare results on different conditions with a control situation.
There is also the so called comparative investigations which collect data from under different conditions but do not include the control situtation.
Assimilated
Assimilation is the process of taking in new information and make incorporate the new information into our existing knowledge. This process was described by Jean Piaget in his theory of cognitive development in children. Jesse is doing this by fitting the new information into his existing schema.
They soldiers had to face a harsh winter. Many died from lack of food and frostbite