Earth science guideNatural Sciences

Earth science study guide: rocks, plates, weather or water, one topic with worked examples and exercises

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Earth science study guide: rocks, plates, weather or water, one topic with worked examples and exercises

Example result

Example for the Standard package

Study guide: solving linear equations, for students aged 13–14

The one rule

An equation is a balance. Whatever you do to one side, you do to the other, and the balance stays level. The goal is to get x alone on one side.

Worked example 3: the unknown on both sides

Solve 5x − 4 = 2x + 11.

  1. Move the x terms to one side: take 2x from both sides. 5x − 2x − 4 = 11, so 3x − 4 = 11.
  2. Move the numbers to the other side: add 4 to both sides. 3x = 15.
  3. Divide both sides by 3. x = 5.
  4. Check: 5 × 5 − 4 = 21 and 2 × 5 + 11 = 21. Both sides match.

Common mistake

In 3(x + 2) = 18, many students write 3x + 2 = 18. The 3 multiplies everything in the brackets: 3x + 6 = 18, so x = 4.

Exercises 7–10

  1. 4x + 3 = x + 18
  2. 2(x − 5) = 14
  3. 7 − x = 3x − 9
  4. 3(2x + 1) = 4x + 15

Answers: 7. x = 5 · 8. x = 12 · 9. x = 4 · 10. x = 6

Files: PDF and Word. The guide is for learning: we do not do homework or tests to be handed in.

Client: a parent whose daughter gets lost when an equation has brackets or the unknown on both sides. Task: a guide at middle school level that starts from the basics and builds up to those two cases. Standard package: up to 8 pages, 6 worked examples, 20 exercises with answers and a summary sheet. Excerpt below.

The client and all details are made up.

About this service

Earth science covers slow processes that are hard to see: plates moving a few centimetres a year, rock changing over millions of years, air masses meeting to make weather. This guide takes one topic at your level, such as plate tectonics, the rock cycle, weathering and erosion, the water cycle or weather fronts, and explains what drives it and what we can observe. Worked examples go step by step through reading a geological cross-section, the key of a weather map or finding the distance to an earthquake from wave arrival times, and exercises with answers let the learner practise. Tell us the topic, the grade or course and what is hard. You get PDF and Word files; Premium adds a test and an answer key. The guide is for learning and makes no forecasts; we don't do homework or tests to be handed in.

What is included

  • What you getA PDF and Word guide on one earth science topic: what drives the process and what we observe, key terms, worked examples with maps, cross-sections and data, common mistakes and exercises with answers. From Standard, also a one-page sheet of processes and terms; in Premium, a self-check test of 20 questions and a separate answer key with short explanations.
  • Causes and effectsWhat drives each process and what we see at the surface
  • Time and scaleMillions of years and centimetres a year made easier to picture
  • Worked examplesCross-sections, weather map keys and wave-timing problems
  • Exercises with answersFrom naming rock types to explaining a landform
  • At your levelMiddle school, high school, college or an adult learner

How it works

  1. 1
    TopicYou name the topic, the level and what is unclear
  2. 2
    WritingWe explain the processes, solve the examples and write the exercises
  3. 3
    DeliveryYou get the guide in PDF and Word on the order page
  4. 4
    StudyYou study with it and ask for changes within your package

What we need from you

The earth science topic (for example, volcanoes, soil formation, ocean currents or the layers of the atmosphere), the level or grade, the curriculum and textbook if any, whether maps, cross-sections or calculations are part of the course, what the learner knows and finds hard, the language and how the guide will be used. You may attach a syllabus or notes as Word or PDF files, up to 3. Please don't send graded work or exam papers to be solved.

We will ask you:

  • Which topic?
  • For what level?
  • Maps, cross-sections or calculations?
  • What is hard, and the language?

Compare packages

BasicOne topic, up to 4 pages$8StandardUp to 8 pages with a summary sheet$16PremiumUp to 15 pages with a test$32
Deadline1 day2 days3 days
Revisions123
Pagesup to 4up to 8up to 15
Worked examples3610
Exercises with answers102035
Summary sheetNoYesYes
Test and answer keyNoNoYes, 20 questions
SubjectEarth scienceEarth scienceEarth science
OrderOrderOrder

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You pay when you order, but the money is released only for accepted work.

  • Fixed priceThe package price does not change after you pay.
  • The money is reservedWhen you pay, the amount is only reserved. It is released to the service once you accept the work.
  • Checked before deliveryEvery result goes through a quality check before it reaches you, and you see it on the order page before accepting it.
  • Free revisionsAsk for changes within your brief as many times as the package allows.
  • Acceptance after 3 daysIf within 3 days of delivery you neither accept the work nor ask for changes, it is accepted automatically. If you write in the order chat after delivery, the order waits; once we answer, we may start the 3 days again and will say so in the chat.
  • Redo or a full refundIf the result does not match your brief and the revisions did not fix it, or the work takes more than twice its deadline, write in the order chat: we will redo the work or refund the payment in full.
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Questions and answers

Is it geology, meteorology or oceanography?

Any of them, one topic per guide. Earth science courses mix all three, so tell us where your topic belongs and how your course names it.

Can it tell me about earthquake or flood risk where I live?

No. The guide explains how earthquakes, floods and storms work in general, for study. It doesn't assess the risk for a place or give safety advice; for that, follow your local authorities.

Will you do my homework or test?

No. We don't do homework, tests or exams to be handed in as the learner's own work; the exercises in the guide are new ones made for practice.

Will it match my curriculum?

We follow the level, curriculum and textbook you name, but terms and depth differ, so check the guide against your course.

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