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Earth's Rotation
Science
| Question | Answer |
|---|---|
| Apparent movement | appears to move, but is not actually moving |
| Rotate | To spin or turn around a central point. In the context of the Earth, it refers to the spinning motion of the Earth on its axis, which takes approximately 24 hours to complete one rotation and causes day and night. |
| Revolve | To move in a circular path around another object. In the context of the Earth, it refers to the Earth's movement around the Sun in an elliptical orbit, which takes approximately 365 days to complete one revolution and causes the change of seasons. |
| Axis | An imaginary line that runs through the Earth from its North Pole to its South Pole. The Earth rotates on its axis, which is tilted at about 23.5 degrees. The axis determines the Earth's day/night cycle and the angle at which sunlight reaches different pa |
| Appearance | How something looks or seems. In the context of the Sun's movement across the sky, it refers to the changing position and height of the Sun throughout the day, resulting in variations in daylight and shadows. |
| Illumination | when an object is light up (moon due to sun shining on it) |
| Shadow | A dark area or shape formed when an object blocks light. Shadows are created when light from a source, such as the Sun, is obstructed by an opaque object, causing a region of darkness to form on the opposite side of the object. |
| Sunrise | when the Sun appears on the horizon in the morning |
| Sunset | when the Sun appears on the horizon in the evening |