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Across 2. Carbon Dioxide, Nitrogen. 6. Has temperatures hot enough to melt lead. 7. The Mayans built this temple with windows positioned so that Venus can be seen through them on special dates. 9. The clouds on this planet reflect sunlight and trap heat. 11. It is named after her love and beauty.

Down 1. he surface is hidden beneath hot, poisonous air made up mostly of this. 3. Earth days it takes for this planet to orbit the sun. A Venusian year. 4. A volcanic crater is named after her. 5. This Italian studied the planets in the 1600's. 8. This is so heavy it would feel like you were deep in the ocean. The pressure is so strong it would crush you. Even tough metal spacecraft were smashed after a few hours on the surface. 10. Spins slowly in a different direction of most planets. 12. Only this is brighter in our night sky. (The second brightest is Venus.)