Examlex
What was different about the American working class of the 1830s as compared to the American working class of the 1840s?
Kaleidoscope
A tube containing mirrors and pieces of colored glass or paper, whose reflections produce changing patterns that are visible through an eyepiece.
Habituation Research
The study of how organisms decrease response to a repeated stimulus over time, a fundamental form of learning.
Physically Impossible
An action or event that cannot occur within the boundaries of the physical laws of the universe.
Infants
Young babies or children, typically under one year of age, who are in the early stages of development.
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