Sleep and Circadian Rhythms
Sleep patterns, circadian rhythm, biological clock, external triggers/cues, effects of lack of sleep, animal/plant behavior(s), Sun, Earth's rotation, day/night, seasons, sleep and microgravity
Modeling Day and NightLesson
Students make a “mini-globe” to investigate the causes of day and night on Earth.
Reason for the SeasonsLesson
Students plot the path of the sun’s apparent movement across the sky on two days, two or three months apart, and learn why Earth experiences different seasons.
Using a SundialLesson
Students make a sundial (shadow clock) and use it to tell time.
Students learn that some behaviors and functions of living organisms vary predictably every 24 hours, and that many life functions are governed by internal "clocks."
Students collect information about their own sleep cycles and use a fraction wheel to examine their data.
Students investigate how changes in their bedtime impact their own sleep patterns.
Sleeping in SpaceLesson
Students read about how astronauts sleep in space, write about unusual places in which they have slept, and discuss times they have had difficulty sleeping.
Summative assessment activity in which students review concepts about sleep and daily cycles, and write illustrated, sleep-related poems.