Across:Neptune – Neptune is known as the "blue planet" because of the methane in its atmosphere, which absorbs red light and reflects blue light.Jupiter – Jupiter is the largest planet in the solar system, with a massive size and strong gravitational force.Sun – The Sun is the center of the solar system, around which all planets orbit.Mercury – Mercury is the smallest planet in the solar system after Pluto was reclassified as a dwarf planet.Down:Venus – Venus is often called Earth’s twin because it is similar in size and composition, but it has a thick, toxic atmosphere.Mars – Mars is known as the "Red Planet" because of its iron-rich soil that gives it a reddish appearance.Earth – Earth is the only known planet to support life and is where humans live.Uranus – Uranus is the seventh planet from the Sun, known for its unique sideways rotation