Adrian Dingle’s Chemistry Pages

Where chemistry is explained

Awesome Chemistry Experiments for Kids!

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Time order your copy of Awesome Chemistry Experiments for Kids!

Chemistry comes alive with hands-on science experiments for kids ages 5 to 10

The world of chemistry is packed with awesome ways for kids to learn and play! Filled with colorful and gooey fun, these science experiments for kids are sure to get them interested in discovering how different substances react together.

Whether it’s creating fizzy bath bombs or making batteries out of coins, each of these science experiments for kids provides a simple hypothesis and the guidance they need to test it out for themselves.



The online AP chemistry summer workshops for teachers are coming back for the 15th & 16th time in July and  August of 2021 respectively

A workshop that focuses on improving AP scores, AP chemistry content, and AP chemistry teaching, and not the edubabble, and mostly spurious lab work that official College Board workshops dwell upon




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A true “chemistry freelancer” and Subject Matter Expert (SME), Adrian brings thirty-one years of full-time classroom chemistry teaching experience, and tens of thousands of hours of one-on-one chemistry tutoring across the globe, to a sixteen year writing career that includes several best-selling, international award-winning chemistry books and a burgeoning portfolio of other chemistry writing projects. A chemistry educator, tutor, writer and author, you’ll find Adrian’s deep expertise applied wherever the need for an explanation of chemistry exists, and where a void in communicating chemistry to children or students is found

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new book in 2021

“We would like to thank you for helping our son develop proficiency in AP Chemistry, and especially in developing critical thinking skills in this subject. For a sophomore student he has come a long way in understanding complex areas of the subject, and your teaching helped him substantially.”

‘R’ in New Jersey

“I got a 5 on AP chemistry and a 770 on the subject test. Thank you so much for all your help this year. I couldn’t have done it without you.”

Vivien in Connecticut

Many students find their chemistry classes challenging ones. Reasons include the intellectual demands of the subject, difficulties with the mathematical aspects of chemistry, and problems associated with the instruction that they are receiving at school or college. As a result, many students will fail to reach their full potential. 1-on-1 chemistry tutoring with an experienced teacher will help them to reach that potential


The best-selling review book that cuts straight to the chase, and delivers higher scores on the AP chemistry exam, is now available in its 3rd Edition. Updated for the 2020 exam forward, the 3rd Edition of the Crash Course book references the AP Chemistry 9 UNIT organization, and deals with each of the minor changes that were introduced for first examination in 2020

“Not only was this book an awesome resource to use for the AP exam, I have continued to use it as a reference in college. The material is so well organized and so thorough, despite being such a short book. The online review was an awesome bonus and I used it to prepare for the AP exam”


“Dear Adrian, Today is my birthday. My eighteenth birthday. This feels like a good excuse to write to you – I’ve been meaning to write for a couple years, to thank you for your writing. Eight years ago, aged 10, after forgetting to pack my miniature painting set when I went on holiday, my mum bought me a book to cheer me up. I read your book ‘How to Make a Universe with 92 Ingredients’ at least three times that fortnight, cover-to-cover, and I was hooked by the chemistry, fascinated by the unseen world that I could explore. Inspired by your book, I would steal my brother’s textbooks to read at night, set up the family camera to film my own chemistry videos, and – most importantly – I started experimenting at home. I took my Chemistry GCSE (I live in the UK) aged twelve, four years early. I was the youngest student in the country to get a GCSE A* in 2014 in any subject. Now 18, I’m taking the International Baccalaureate, studying Maths, Chemistry and Physics at higher level. I’m applying to study Natural Sciences (Physical) at Cambridge University.” – Tom

November 2019


… on Acid-Base

Deadly gas is common AP Chemistry analog

Ammonia is a pretty ubiquitous chemical substance when it comes to AP Chemistry. Not so much much...

All creatures great and small and 2016, 6

All things bright & beautiful, all creatures great and small. Remember that hymn? We often...

Math, Buffers and H-H (part 2)

Following this post, I wanted to follow up with another quick note on the math of buffers as it...

Math, buffers and H-H, revisited in the new curriculum

I think that there are (unfortunately) some useful, simple math things to know when it comes to...

AP Worksheet 14x – missing answers

Click below for the answers to the questions from AP Worksheet 14x that we did not do in class....

Subscriber Updates

The following materials have been updated in the relevant subscriber areas; AP notes TOPIC 6, AP...

… on the 2019 CED

Quadratics, equilibrium, and AP Chemistry

Here's a common question that I was asked once again today; Adrian, why do some of your materials...


That sounds like a Chicago song, but ... ... in various places on this site, you will see...

Updated CED (May 2019) – Emerging thoughts

So here we are with an updated CED. My experience of formally working with the College Board was...

… on all topics

A question of integrity

As in '20, I will NOT report my '21 #apchem scores publicly. As in '20, the '21 scores are...

Thoughts on the 2021 AP Chemistry Released FRQs

Here are some initial thoughts on the AP Chemistry 2021 released FRQs. I will publish my draft...

Sequence and timing for AP chemistry

I've written about sequence and timing here in the past, but here's a little extension that might...

AP Chemistry 2021 Infographic

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Organic Course 1 or Course 2

Currently (March 2021) this is a moot point, since only Course 1 is available, however, toward the...

Definitions – they’re important!

On old A Level and IB exams there were commonly questions that straight-up asked for definitions....