History Test Crossword
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
 
 
Down: 2) The tilt of the Earth changes from 21.5 to 24.5 every 41,000 years3) A 'wobble' of the Earth's axis occurs during a 26,000 year period5) Using absorptive structures with no moving parts to gather and hold heat6) every 100,000 years, the earth's orbit becomes more elliptical and then returns back to more of a circle7) Pump heat-absorbing medium through a collector, rather than passively collecting heat in a stationary object8) Hot, dry weather is often present. Resulting high sea surface temperatures cause hurricanes to be more violent.12) An international group of scientists and governmental representatives from 130 countries formed to review the scientific evidence for climate change. Across: 1) Called on nations to roll back carbon dioxide, methane, and nitrous oxide emissions about 5% below 1990 levels by 2012. 4) Occurs when warm surface waters in Pacific Ocean move back and forth between Indonesia and South America. 5) Rate at which work is done 9) Varations in the Earth's orbit over time10) The capacity to do work11) Application of force over distance (measured in joules) 13) Simultaneous production of both electricity and steam, or hot water, in the same plant
 

 

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