【明報專訊】Across 1. Tides are caused by the gravitational forces exerted by the moon, the Sun and the _ _ _ _ _ _ _ _ (旋轉) of Earth. 4. Because of its smaller mass (體積), _ _ _ _ _ _ _ (引力) of the moon is about one-sixth that of Earth. If you are 36 kg on Earth, you would weigh 6 kg on the moon. You would also leap higher! 5.The moon is the only natural _ _ _ _ _ _ _ _ _ (衛星) of the Earth and is the fifth-largest one in the solar system (太陽系). Down 2. Neil Armstrong from _ _ _ _ _ _ _ was the first man to walk on moon. He achieved the feat during the Apollo 11 mission. 3. The moon's _ _ _ _ _ (軌迹) is not equidistant (等距離的) from Earth. The next "supermoon" (超級月亮)will appear on December 3. (Answers on next text) ■Glossary exert (v) 施加 leap (v) 跳躍 feat (n) 功績、創舉 [Smarties' Power English 第200期]
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