science

Reveal system

Reveal system 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 Reveal system rather than just read about it. In short: A 20th-century system of plant taxonomy, the Reveal system (see also the Thorne & Reveal system) of plant classification was drawn up by the American botanist James Reveal (1941–2015). The system was published online in 1997 in ten parts as lecture notes comparing the major systems in use at that time.

Key takeaways

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

Reference excerpt

A 20th-century system of plant taxonomy, the Reveal system (see also the Thorne & Reveal system) of plant classification was drawn up by the American botanist James Reveal (1941–2015). The system was published online in 1997 in ten parts as lecture notes comparing the major systems in use at that time. Subsequently, Reveal became an author with the consensus Angiosperm Phylogeny Group (APG) on the APG II 2003 and APG III 2009 processes. Although this largely supplanted the earlier and competing systems, he collaborated with Robert Thorne on his system (2007), and subsequently continued to develop his own system.

1997 system division Magnoliophyta [= angiosperms] class Magnoliopsida subclass Magnoliidae class Piperopsida subclass Piperidae subclass Nymphaeidae subclass Nelumbonidae class Liliopsida [= monocots] subclass Triurididae subclass Aridae subclass Liliidae subclass Arecidae subclass Commelinidae subclass Zingiberidae class Ranunculopsida subclass Ranunculidae class Rosopsida subclass Caryophyllidae subclass Hamamelididae subclass Dilleniidae subclass Rosidae subclass Cornidae subclass Lamiidae subclass Asteridae

In more detail:

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Reveal system

Start with the simplest possible case. Write down what Reveal system 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 Reveal system 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 Reveal system 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 Reveal system

In research: Reveal system 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 Reveal system 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: Reveal system is common in secondary-school and first-year university syllabi. It links to neighbouring topics Systems of plant taxonomy, so understanding it makes those chapters shorter.
In everyday life: Look for Reveal system 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 Reveal system in 20 minutes

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

Frequently asked questions

What is Reveal system in simple terms?

Why does Reveal system 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 Reveal system?

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 Reveal system.