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Worksheet to practice the earth movements | ||
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| Subject: Geology | ||
| 5th Grade | ||
| Term 1 | ||
| Year: 2023/2024 | ||
| Size: 507.2KB | ||
| Number of clicks: 115 | ||
| Publish date:November 22, 2023 | ||
| Added by: Eman | ||
| Last download date: 2024-09-12 20:45:37 | ||
| Updated by: Eman9966 on 2023-11-23 16:26:04 | By: theodor Maria | |
| File info: Earth undergoes two primary movements: rotation and revolution. These movements are essential for shaping the planet's environment, influencing weather patterns, and dictating the day-night cycle. Rotation Earth's rotation is its spinning motion around its own axis. This axis is an imaginary line that runs through the planet's center from pole to pole. One complete rotation takes approximately 24 hours, which is the length of a day. Rotation has several significant effects on Earth: Day-Night Cycle: As Earth rotates, different parts of the planet face the Sun, creating the day-night cycle. The side facing the Sun experiences daytime, while the side facing away experiences nighttime. Coriolis Effect: The Coriolis effect is an apparent deflection of moving objects due to Earth's rotation. It influences wind patterns, ocean currents, and the trajectory of projectiles. Gravity: Rotation contributes to Earth's gravity. The centrifugal force generated by rotation slightly reduces gravity near the equator and increases it near the poles. Revolution Earth's revolution is its motion around the Sun. This elliptical path takes approximately 365.25 days, which is the length of a year. The Earth's axis is tilted at an angle of 23.45 degrees, causing the seasons. Revolution has several significant effects on Earth: Seasons: The tilt of Earth's axis causes the seasons. When the Northern Hemisphere is tilted towards the Sun, it experiences summer, while the Southern Hemisphere experiences winter. The reverse occurs six months later. Sun's Energy Distribution: The intensity of sunlight varies throughout the year due to Earth's revolution. This variation affects temperature patterns and plant growth. Lunar Phases: The Sun's light reflected off the Moon creates the phases of the Moon. These phases are influenced by the relative positions of the Earth, Moon, and Sun. Interplay of Movements The combination of rotation and revolution creates a dynamic environment on Earth. The rotation-revolution cycle influences weather patterns, ocean currents, and the distribution of solar energy across the planet. These movements, along with other factors like atmospheric composition and the presence of life, make Earth a unique and habitable place. In addition to rotation and revolution, Earth undergoes several other minor movements, including: Libration: The Earth's axis wobbles slightly over time, causing a small variation in the length of a day. Nutation: The Earth's axis precesses, meaning it slowly changes its direction like a spinning top. This cycle takes approximately 26,000 years. Polar motion: The Earth's rotational axis moves slightly within the Earth, causing the geographic poles to shift by a few meters over time. These minor movements, while less noticeable than rotation and revolution, also contribute to Earth's dynamic environment and influence various phenomena. | ||
| Downloading link Worksheet to practice the earth movements |
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1700663155.pdf
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