Planets in Our Solar System From the beginning of time man has looked to the skies from intrigue and for answers and explanations. ... In 1969 man first landed on the moon making it the only exterritorial body visited by humans. ... The moon is also the only terrestrial body which keeps the same face to the Earth at all times. ... With a specific gravity less than that of water, Saturn is least dense of all planets. ... Uranus" summers are in complete sunlight, while the winters are covered with continuous darkness, each season lasting 21 years. ...

• Word Count: 2531
• Approx Pages: 10
• Has Bibliography
• Grade Level: High School

Sea level will rise all over the planet. ... At present the most important are methane (CH4), man made chlorofluorocarbons CFC-11 and CFC-12, nitrous oxide (N2O), and ozone (O3) in the lower atmosphere. ... Warmer temperatures, rise in sea level, changes in precipitation and water availability, altered storm patterns, and changes in growing seasons are all implications of the greenhouse effect. ... The distribution of precipitation, both geographically and by season, will change. ...

• Word Count: 2775
• Approx Pages: 11
• Grade Level: Undergraduate