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How big is earth's moon?

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"If Earth were the size of a nickel, the moon would be about as big as a coffee bean," according to NASA. The moon's surface area is about 14.6 million square miles (38 million square kilometers), which is less than the total surface area of the continent of Asia (17.2 million square miles or 44.5 million square km). read more

The moon is a bit more than one-fourth (27 percent) the size of Earth, a much smaller ratio (1:4) than any other planets and their moons. Earth's moon is the fifth largest moon in the solar system. The moon's mean radius is 1,079.6 miles (1,737.5 kilometers). read more

Our Moon follows an elliptical path around the Earth, getting as close as 363,000 km and as far as 405,000 km. This means the Earth would get bigger and smaller in the sky. As Earth is much larger than the Moon, it would take up 13 times as much area. read more

Using the Earth and Moon Diagram, show them a circle of paper that is 4"(10 cm) in diameter. This will represent Earth. Now, ask them how big a paper circle you need to represent the moon. Have the students cut out a circle the size they think the moon should be and compare their estimates. read more

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