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NES Earth and Space Science (307) Practice Tests & Test Prep by Exam Edge - Topics



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Understanding what is on the NES Earth and Space Science exam is crucial step in preparing for the exam. You will need to have an understanding of the testing domain (topics covered) to be sure you are studying the correct information.

  • Directs your study efforts toward the most relevant areas.
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There is no doubt that this is a strategic step in achieving certification and advancing your career.

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NES Earth and Space Science Exam Blueprint

Understanding the exact breakdown of the NES Earth and Space Science test will help you know what to expect and how to most effectively prepare. The NES Earth and Space Science has multiple-choice questions The exam will be broken down into the sections below:

NES Earth and Space Science Exam Blueprint
Domain Name % Number of
Questions
Nature of Science 18% 18
Geology 25% 25
Oceanography and Freshwater Systems 19% 19
The Atmosphere, Weather, and Climate 19% 19
Astronomy 19% 19

NES Earth and Space Science - Exam Topics Sample Questions

A craton is the oldest and most stable part of a continent. Due to glaciation in North America, this area (as pictured above) was scraped down to the rocks of the craton. This area is known as:

Correct Answer:
the canadian shield.


the canadian shield, often referred to as the geological core of north america, is the oldest and most stable part of the continent. this vast area is known for its ancient rock formations, which have been exposed and shaped by repeated glaciations over millions of years. the last ice age played a significant role in scraping the soil and sediment down to the bedrock, revealing the craton beneath – the stable, ancient heart of the continent.

covering roughly half of canada, the canadian shield stretches from the great lakes and the st. lawrence river northward to the arctic ocean, encompassing parts of ontario, quebec, saskatchewan, manitoba, nunavut, and the northwest territories. its reach also extends into portions of the northern united states, including parts of minnesota, wisconsin, michigan, and upstate new york. despite its extensive coverage, the shield does not extend as far south as nebraska, nor does it include the westernmost province of british columbia or the easternmost areas like newfoundland, which are geologically distinct.

the surface of the canadian shield is characterized predominantly by exposed precambrian rock, which is among the oldest on earth, dating back to 4 billion years ago. this makes it a prime area for geological study and mineral extraction. despite the harshness of the glaciated landscape, the shield is not entirely barren. it supports a thin layer of soil that sustains a boreal forest ecosystem, consisting mainly of spruce, fir, and pine trees, adapted to the nutrient-poor conditions. the region is dotted with thousands of lakes, formed by glacial activity, which contribute to its unique ecology and geography.

the canadian shield plays a crucial role in canada’s natural resources sector, particularly in mining, as it is rich in minerals such as gold, nickel, and copper. the historical and ongoing extraction of these resources has had significant economic implications for the country. moreover, the shield's vast landscapes and numerous waterways make it a popular destination for outdoor and adventure tourism, offering activities such as canoeing, fishing, and hiking in its expansive, rugged terrain.

understanding the canadian shield is essential not only for appreciating the geological history and natural beauty of north america but also for recognizing its economic and environmental significance. its ancient rocks tell stories of earth’s early history, providing insights into the planet's geological evolution and the natural processes that have shaped the continent over billions of years.