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Mare Anguis

Mare Anguis is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Mare Anguis rather than just read about it. In short: Mare Anguis (Latin anguis, the "serpent sea") is a lunar mare located on the near side of the Moon, about 150 kilometers in diameter. Located within the Crisium basin, Mare Anguis is a part of the Nectarian System, meaning that it was formed during the Nectarian time period.

Mare Anguis — main illustration
Mare Anguis — illustration

Key takeaways

  • Mare Anguis belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Mare Anguis to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Mare Anguis from memory before moving on to harder problems.

Reference excerpt

Mare Anguis (Latin anguis, the "serpent sea") is a lunar mare located on the near side of the Moon, about 150 kilometers in diameter. Located within the Crisium basin, Mare Anguis is a part of the Nectarian System, meaning that it was formed during the Nectarian time period. Like most mare, the surface of Mare Anguis is dark, indicating that it has been filled with volcanic basalt. It forms part of a concentric ring to the northeast of the Crisium rim, and it lies at an elevation 800 m above Mare Crisium. Channels lead down from Mare Anguis to Mare Chrisium, with some possible indications of lava flow. The small, 7–km diameter crater Eimmart A lies at the east edge of Mare Anguis. It is a proposed source for the Antarctic meteorite ALHA81005. The impact appears to have excavated mare basalt, which probably accounts for the olivine/low-Ca pyroxene mixture found in the spectrum.

See also Volcanism on the Moon

References

Illustrations

Mare Anguis illustration
Mare Anguis: Oblique view of Mare Anguis from Apollo 17
Oblique view of Mare Anguis from Apollo 17

Worked examples

Example 1 — a first encounter with Mare Anguis

Start with the simplest possible case. Write down what Mare Anguis claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Mare Anguis before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Mare Anguis ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Mare Anguis

In research
Mare Anguis appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Mare Anguis in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Mare Anguis is common in secondary-school and first-year university syllabi. It links to neighbouring topics LQ13 quadrangle, Maria on the Moon, Moon stubs, so understanding it makes those chapters shorter.
In everyday life
Look for Mare Anguis outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Mare Anguis in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Mare Anguis means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Mare Anguis out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Mare Anguis in simple terms?

Mare Anguis (Latin anguis, the "serpent sea") is a lunar mare located on the near side of the Moon, about 150 kilometers in diameter. Located within the Crisium basin, Mare Anguis is a part of the Nectarian System, meaning that it was formed during the Nectarian time period.

Why does Mare Anguis matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Mare Anguis?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Mare Anguis.

Tags

  • LQ13 quadrangle
  • Maria on the Moon
  • Moon stubs
  • Nectarian

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