火星英文學習單 | Bảng tính ESL Tiểu học Mars

火星：紅色星球 (Mars: The Red Planet)

Mars is the fourth planet from the Sun. It is called the Red Planet because its surface is covered in red and orange dust. This dust is made of iron, which turns red when it rusts. Mars is a cold, dry place, and it looks like a big desert.

Mars is much smaller than Earth, but it has some very big things. It has the tallest volcano in the whole solar system. This volcano is called Olympus Mons. Mars also has a huge hẻm núi called Valles Marineris. It is much longer and deeper than the Grand Canyon on Earth.

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程度 (Level): Level C (Elementary) | 年級 (Grade): 3-5