science

Lake Coleman

Lake Coleman 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 Lake Coleman rather than just read about it. In short: Lake Coleman was a large lake, in the same basin as Lake Ontario, during an interglacial period, approximately 75,000 years ago. Its level was 20 metres (66 ft) higher than Lake Ontario.

Key takeaways

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

Reference excerpt

Lake Coleman was a large lake, in the same basin as Lake Ontario, during an interglacial period, approximately 75,000 years ago. Its level was 20 metres (66 ft) higher than Lake Ontario. Lake Coleman was named after Arthur Philemon Coleman, a respected geologist whose excavations played a role in discovering the existence of the lake.

See also Glacial Lake Iroquois, a prehistoric proglacial lake in the same basin as Lake Ontario that existed at the end of the last ice age approximately 13,000 years ago. The level of the lake was approximately 30 meters (~100 ft) above the present level of Lake Ontario.

References

Worked examples

Example 1 — a first encounter with Lake Coleman

Start with the simplest possible case. Write down what Lake Coleman 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 Lake Coleman 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 Lake Coleman 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 Lake Coleman

In research: Lake Coleman 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 Lake Coleman 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: Lake Coleman is common in secondary-school and first-year university syllabi. It links to neighbouring topics Glaciology stubs, Proglacial lakes, so understanding it makes those chapters shorter.
In everyday life: Look for Lake Coleman 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 Lake Coleman in 20 minutes

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

Frequently asked questions

What is Lake Coleman in simple terms?

Lake Coleman was a large lake, in the same basin as Lake Ontario, during an interglacial period, approximately 75,000 years ago. Its level was 20 metres (66 ft) higher than Lake Ontario.

Why does Lake Coleman 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 Lake Coleman?

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 Lake Coleman.