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Textbook: The Movement of the Moon | Natural Science and Technology (Grade 6-B) PDF Download

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FAQs on Textbook: The Movement of the Moon - Natural Science and Technology (Grade 6-B)

1. What causes the different phases of the Moon?
Ans.The different phases of the Moon are caused by the changing positions of the Moon, Earth, and Sun. As the Moon orbits Earth, we see different portions of its illuminated half, creating the phases: new moon, crescent, first quarter, gibbous, full moon, and back again.
2. How long does it take for the Moon to complete one orbit around the Earth?
Ans.The Moon takes about 27.3 days to complete one orbit around the Earth. This period is known as a lunar month, but because of the Earth's movement around the Sun, it takes about 29.5 days to go from one new moon to the next.
3. Why does the Moon appear to change size and shape in the sky?
Ans.The Moon does not actually change size; it appears to change shape due to its phases. This illusion happens because of the way sunlight reflects off the Moon's surface and how much of that light we can see from Earth.
4. What is a lunar eclipse, and how does it happen?
Ans.A lunar eclipse occurs when the Earth comes between the Sun and the Moon, casting a shadow on the Moon. This can only happen during a full moon when the Sun, Earth, and Moon are aligned in a straight line.
5. How does the Moon's gravity affect Earth?
Ans.The Moon's gravity influences Earth in several ways, most notably through the creation of tides. As the Moon's gravitational pull affects the water in the oceans, it causes the rise and fall of sea levels, resulting in high and low tides.
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