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  2. Diurnal cycle - Wikipedia

    en.wikipedia.org/wiki/Diurnal_cycle

    A diurnal cycle (or diel cycle) is any pattern that recurs every 24 hours as a result of one full rotation of the planet Earth around its axis. [1] Earth's rotation causes surface temperature fluctuations throughout the day and night, as well as weather changes throughout the year. The diurnal cycle depends mainly on incoming solar radiation. [2]

  3. Diurnality - Wikipedia

    en.wikipedia.org/wiki/Diurnality

    Steppe eagles are diurnal, and hunt during the day. Humans are diurnal, and organize their work and business mainly in the day. [a] Diurnality is a form of plant and animal behavior characterized by activity during daytime, with a period of sleeping or other inactivity at night. The common adjective used for daytime activity is "diurnal". The ...

  4. Circadian clock - Wikipedia

    en.wikipedia.org/wiki/Circadian_clock

    In vertebrates, the master circadian clock is contained within the suprachiasmatic nucleus (SCN), a bilateral nerve cluster of about 20,000 neurons. [10] [11] The SCN itself is located in the hypothalamus, a small region of the brain situated directly above the optic chiasm, where it receives input from specialized photosensitive ganglion cells in the retina via the retinohypothalamic tract.

  5. 30 sleepover activities to keep the party going all night long

    www.aol.com/news/30-sleepover-activities-keep...

    Looking for ways to occupy kids until bedtime? We'll help you get the party started with 30 things to do at a sleepover or slumber party.

  6. 25 Exciting Earth Day Activities for Kids - AOL

    www.aol.com/lifestyle/21-earth-day-activities...

    Friday, April 22nd marks Earth Day 2022, and while we’re not limiting our pledge to live a little greener to a single day a year, it marks a great opportunity to teach our kids about living ...

  7. Circadian rhythm - Wikipedia

    en.wikipedia.org/wiki/Circadian_rhythm

    A circadian rhythm (/ s ər ˈ k eɪ d i ə n /), or circadian cycle, is a natural oscillation that repeats roughly every 24 hours.Circadian rhythms can refer to any process that originates within an organism (i.e., endogenous) and responds to the environment (is entrained by the environment).

  8. 50 Fun Thanksgiving Activities and Ideas for Kids - AOL

    www.aol.com/50-fun-thanksgiving-activities-ideas...

    Check out the 50 Thanksgiving activities for kids we have rounded up from some of our favorite blogs, that kids of all ages will enjoy doing! I Heart Crafty Things

  9. Day - Wikipedia

    en.wikipedia.org/wiki/Day

    A day is the time period of a full rotation of the Earth with respect to the Sun. On average, this is 24 hours (86,400 seconds). As a day passes at a given location it experiences morning, noon, afternoon, evening, and night. This daily cycle drives circadian rhythms in many organisms, which are vital to many life processes.