The trail is close to 1,000 wandering miles through various landscapes. ... I thought that this was interesting because it stated that, "several moraines formed, one behind the other, as the edge of the ice stood in each place before it continued to melt back- (UWEX, 1990). ... When the ice blocks were present under the overlying debris, and began to melt this caused the debris to sink downward and caused the debris to leave a depression in the ground (UWEX, 1990). ... Devils Lake was created when ice blocked both ends of the gorge, holding the water in the gorge more than 100 feet abov...

• Word Count: 1028
• Approx Pages: 4
• Grade Level: High School

Although the specific penguin species of these trinkets are unknown to me, each one made me love penguins more. ... All penguins in the group travel 56 miles away from the water to be nearer to sturdy ice that has less of a chance to break under the new chicks. ... They will also huddle together to block the whipping winds. ...

• Word Count: 588
• Approx Pages: 2
• Has Bibliography
• Grade Level: High School

It works as a filter that lets in UV rays that are vital to the health of the earth; it also blocks harmful rays that are dangerous to humans and the environment. ... Each of them presents challenges that would have to be overcome in order to be used effectively. ... The ozone hole is currently 11.5 million square miles and has grown by over a million square miles a year since the year 2000. ...

• Word Count: 1083
• Approx Pages: 4
• Grade Level: High School