Examlex
When the equation H2O + NO2 → NO + HNO3 is balanced, the sum of all the coefficients (both written and "understood") is ______________.
Jean Piaget
A Swiss psychologist known for his pioneering work in child development, particularly his theory of cognitive development in children.
Strange Situation
A procedure developed by Mary Ainsworth in the 1970s to observe attachment relationships between a caregiver and child.
Experiment
A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
Prenatal Development
The process of growth and development within the womb from conception to birth.
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