N5ChemTutor for iPad, iPhone and iPod touch.

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Sunday, 20 Nov 2016

N5ChemTutor App (1.3.1) is now available on App store. This inludes various improvements and Topic 3 - Formula and Equation Writing.

I've also made the decision to revert to a totally Free App for the foreseeable future - mainly to support schools that install Apps on Devices they supply to their pupils.

Tuesday, 16 Aug 2016

N5ChemTutor App (1.2.1) was uploaded App store. This inludes various improvements and Topic 2 - Atomic Structure and Nuclear Chemistry.

This is the first of the 2 or 3 Topics that I will charge for.

Monday, 06 June 2016

N5ChemTutor App (1.1.3) was launched on App store.

Initially it contained an Introduction and Topic 1, which could be downloaded and installed for free.

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There are two main features of the N5ChemTutor App.

Study - a series of lessons designed to consolidate and revise Chemistry already studied, or to allow for 'flipped lessons' where students are required to do a lot more 'self-study'.

Take Test - selected randomly from a bank of questions which will test understanding of the concepts met in a particular Topic.

In addition, More Topics will be used to install the remaining Topics as they become available.

Tests History will store results of Tests and will enable learners to drill down to review previous attempts and see explanations.


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The Majority of Topics will be provided free and only 3 or 4 of the Topics will require to be purchased. Proposed Topics (subject to change):

  • Reaction Rates & Investigation Skills
  • Atomic & Nuclear Chemistry
  • Structure & Bonding
  • Formula & Equation Writing
  • Calculations 1
  • Acids & Bases
  • Hydrocarbons
  • Addition Polymers
  • Consumer Products
  • Condensation Polymers
  • Calculations 2
  • Metal Chemistry / RedOx
  • Fertilisers
  • Chemical Analysis

From November 2016 until further notice: the 'In-App' purchase feature has been switched off and the App will be available completely free.


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Lessons will reflect my personal take on what is needed (after 30+ years of teaching) for learners at this stage.

It will be heavily slanted towards the N5 Chemistry since this is the course I am most familiar with but I will also be covering content found in most Chemistry courses taught at this stage.

Wherever possible, lessons will include short edited videos to inform those who may not be learning in a Chemistry class or to reinforce skills met by those lucky enough to be being taught directly by a teacher.

To avoid the App becoming too large, these videos will be hosted externally so only available when connected to the internet.

Quick Checks

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Each Lesson includes at least 2 Quick Check questions which can be checked immediately with feedback provided.

Questions can be reset to allow further practice in the future.

Each Lesson concludes with a summary of the Key Points.

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A bank of over 50 questions per Topic can be used to check understanding.

At the moment Tests are set to randomly select 10 questions and provide 10 minutes to complete the Test.

10 minutes allows time to review and/or go back over skipped questions

A pass is awarded if the learner achieves 50% in the Test.

In the future, it is intended to allow user to decide number of questions, time allocated and pass mark for themselves.

Questions can be answered or skipped or answered but marked for review.

Tapping on pictures will enlarge/reduce them and a feature called Canvas allows annotation over a question.

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Once a Test has been submitted and marked, there are various options available.

View Results By Sub-Topic (renamed since this screen shot) allows the user to look for any strengths/weaknesses in particular areas and target them for improvement.

Selecting any of the attempted questions will allow detailed comparison of answers selected and correct answers.

Finally, Explanations are available to allow users the chance to see not only the correct answers but the reasoning behind the answer.

The results of all Tests are archived and can be accessed and analysed through 'Test History' at any time.

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Board Lessons

This is mainly for my own use. These web pages will allow me to use the Lessons I have created for the N5ChemTutor App, projected onto my board, with my classes.

Teachers, who have bought copies of the App are entitled to use these pages.

Anyone else wishing to use them should either buy the App, or make a donation.

N5ChemTutor for iPad, iPhone and iPod touch.

Apple Store Download Badge

Topic 1

Factors Affecting Rate - 4 Lessons
Measuring Rates - 3 Lesssons
Investigation Skills - 5 Lessons
Worked Examples 1 - 3 Examples

Topic 2

Atomic Models - 2 Lessons
Important Numbers - 4 Lessons
Nuclear Chemistry - 5 Lessons
Electron Arrangements - 1 Lesson
Worked Examples 2 - 8 Examples

Topic 3

Introduction - 1 Lesson
From Names - Prefixes - 1 Lesson
Two Element Compounds - 1 Lesson
Three Element Compounds - 1 Lesson
Balancing Equations - 1 Lesson
Working with Ions - 1 Lesson
Worked Examples 3 - 7 Examples

Topic 4

Introduction - 1 Lesson
Monatomic Structure - 1 Lesson
Metallic Structure - 1 Lesson
Covalent Bonding - 1 Lesson
Covalent Molecular - 1 Lesson
Covalent Networks - 1 Lesson
Ionic Networks - 1 Lesson
Electrolysis - 1 Lesson
Worked Examples 4 - 7 Examples

Contact Me

Gordon Watson

My name is Gordon Watson and I'm presently a Chemistry Teacher at Kelso High School. I expect to be retiring from teaching in the near future and my intention is to write more Apps after I finish this one.

Please feel free to contact me if you have any Technical Problems with the App, Questions about Future Developments, Suggestions for Improvements, a General Enquiry or simply want to make a Comment.

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please prove that you are a real person!