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Are You Smarter Than a Fifth Grader?

  It hit me in about the fifth grade. The year was 1969. I became fascinated with science. I made model rocket ships, did science experiments in our kitchen - much to my mother’s dismay - and had science posters on my wall. I guess I was what you might call a science geek. My favorite field was astronomy. I dreamed of visiting other planets, and tried to imagine what that must be like. One day my grandmother gave me a large poster of the Solar System. It had pictures of all the planets, and a diagram of their orbits around the Sun. I was curious about Venus. My poster said it was very hot, with an average temperature over 800F˚. That made me curious so I did more research.   Venus, it turns out has a very dense atmosphere, 100 times that of Earth. And the atmosphere was mostly carbon gas, about 90% carbon dioxide. The carbon gas, I found out, produces a greenhouse effect in the atmosphere, which doesn’t let the heat escape. That combined with being closer to the Sun makes Venus super h