Examlex
When water freezes, stable hydrogen bonds form between the water molecules that create an open, six-sided (hexagonal) arrangement.
Stimulus
An external event or factor that induces a response or reaction in an organism or in a system.
Developmental Psychologist
A specialist who studies the physical, cognitive, and social changes that occur throughout a person's lifespan.
Developmental Psychologist
A psychologist who studies the psychological growth and changes that occur throughout a person's life.
Life-Span Development
The study of how individuals grow, change, and age throughout the course of their life, from conception to death.
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