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Worksheet about Earth Daily Cycle | ||
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| Subject: Geology | ||
| 1st Grade | ||
| Term 1 | ||
| Year: 2023/2024 | ||
| Size: 663.1KB | ||
| Number of clicks: 162 | ||
| Publish date:November 27, 2023 | ||
| Added by: Eman | ||
| Last download date: 2024-09-07 20:17:28 | By: theodor Helen Ordeñana | |
| File info: The Earth's daily cycle is primarily driven by its rotation on its axis. Here are some key aspects of the Earth's daily cycle: 1. Day and Night: As the Earth rotates on its axis, different parts of the planet are exposed to the Sun's light, resulting in the cycle of day and night. When a particular location on Earth is facing towards the Sun, it experiences daylight, while the opposite side is in darkness, experiencing nighttime. This rotation takes approximately 24 hours to complete. 2. Sunrise and Sunset: At sunrise, the Sun appears on the horizon, marking the beginning of daylight for a specific location. As the Earth continues to rotate, the Sun gradually rises higher in the sky until it reaches its highest point at noon. Afterward, the Sun begins to descend, leading to the occurrence of sunset when it disappears below the horizon, signifying the end of daylight for that location. 3. Length of Daylight: The length of daylight varies throughout the year due to the tilt of the Earth's axis and its elliptical orbit around the Sun. During the equinoxes (around March 21st and September 21st), the length of daylight and darkness is roughly equal worldwide. However, during the solstices (around June 21st and December 21st), one hemisphere experiences its longest day (summer solstice) while the other hemisphere experiences its shortest day (winter solstice). 4. Diurnal Animal Behavior: Many organisms, including animals and plants, have adapted their behavior and physiology to the Earth's daily cycle. Diurnal animals are active during the daytime, utilizing sunlight for various activities such as foraging, mating, and avoiding predators. Nocturnal animals, on the other hand, are adapted to be active during the nighttime, relying on other senses such as enhanced vision in low light conditions. 5. Circadian Rhythms: Circadian rhythms are internal biological processes that follow a roughly 24-hour cycle. These rhythms influence various physiological and behavioral patterns in organisms, including sleep-wake cycles, hormone production, and metabolism. Circadian rhythms are synchronized with the Earth's daily cycle and are influenced by environmental cues such as light and darkness. It's important to note that the daily cycle can be influenced by factors such as latitude, seasons, and weather conditions. Additionally, the exact length of a day may vary slightly due to factors like the Earth's axial tilt and the gravitational interactions with other celestial bodies. Nonetheless, the Earth's daily cycle of rotation on its axis is a fundamental aspect of our experience of time and the natural rhythms of life on the planet. | ||
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