Process of Science: Scientists Have Not Been Able to Observe

question 67

Essay

Process of Science: Scientists have not been able to observe the ultimate fate of our universe.On what evidence do they base the idea that it will expand forever?

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Definitions:

REM Sleep

A sleep stage characterized by rapid eye movement, increased brain activity, and vivid dreams.

K-Complexes

Brain waves that occur during stage 2 of NREM sleep, characterized by a sudden increase in wave amplitude, and thought to aid in sleep-based memory consolidation and sleep quality.

Slow-Wave Sleep

A deep sleep stage characterized by slow brain waves, reduced muscle activity, and slowed physiological activity, facilitating restorative processes.

Activation-Synthesis Theory

The idea that dreams are the result of the brain’s attempts to make sense of random brain activity by combining the activity with stored memories.