science

Mole plough

Mole plough 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 Mole plough rather than just read about it. In short: A mole plough is a piece of agricultural equipment used to create underground drainage channels – called mole drains – in poorly permeable clay soils. This drainage technique is known as mole drainage.

Key takeaways

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

Reference excerpt

A mole plough is a piece of agricultural equipment used to create underground drainage channels – called mole drains – in poorly permeable clay soils. This drainage technique is known as mole drainage. The mole plough is primarily used to dry out wet fields and pastures. The cracks it creates in the topsoil help guide excess water toward the mole drains, which helps control the water table and maintain a sufficiently dry and stable soil for supporting heavy agricultural machinery. A mole plough should not be confused with a subsoiler, an agricultural tool used to loosen compacted soil layers. A mole plough has a torpedo-shaped bullet followed by an expander. The diameter of the mole is slightly larger than that of the torpedo, allowing the mole drain to be smoothed and consolidated. Mole ploughs are used to create drainage without tiles. A different form of this implement (with a single blade), a pipe-and-cable-laying plough, is used to lay buried cables or pipes, without the need to dig a deep trench and re-fill it. In contrast, a trencher does create a trench of about 1 m in which the drainage pipe is laid. A layer of approximately 55 cm of highly permeable material (such as gravel) is placed on top of the main drain. Mole drains are then pulled perpendicular to the main drains to a depth of around 65 cm. In this way, the mole drains intersect the permeable layer above the main drain every so often, allowing the water to be drained.

Agricultural machinery that is not powered by human labour generally come in three types: self-propelled, trailed, or mounted. A self-propelled implement has its own drive system. Trailed and mounted implements, on the other hand, require an external traction vehicle such as a tractor. A trailed implement has its own chassis, while a mounted one does not, and is instead raised or lowered using the tractor’s hydraulic system. The mole plough is typically used in a mounted version. However, in countries like the United Kingdom – where fields are generally larger – trailed mole ploughs are also common. In both cases, the tool is operated by a tractor.

References

External links

Video showcasing a mole plough at work on YouTube

Illustrations

Worked examples

Example 1 — a first encounter with Mole plough

Start with the simplest possible case. Write down what Mole plough 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 Mole plough 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 Mole plough 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 Mole plough

In research: Mole plough 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 Mole plough 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: Mole plough is common in secondary-school and first-year university syllabi. It links to neighbouring topics Agricultural machinery, so understanding it makes those chapters shorter.
In everyday life: Look for Mole plough 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 Mole plough in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Mole plough 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 Mole plough out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Mole plough in simple terms?

Why does Mole plough 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 Mole plough?

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 Mole plough.