Science M.2 Practice App Review: 1,000+ Grade 8 Science Questions With Explanations
Grade 8 science in Thailand covers a lot of ground, from solutions and the human body to motion, force, work and energy. Reading summaries alone rarely prepares students for real exam questions. One of the most effective habits is regular Grade 8 science practice with explanations that show why an answer is correct.
In this review, ChatStick introduces “ตะลุยโจทย์ วิทย์ ม.2” (Science M.2 Practice), an iPhone and iPad app with more than 1,000 questions across all 8 learning units of the Thai Mathayom 2 science curriculum, every one of them explained, and usable offline.
Why practice questions matter more than summaries
Many M.2 topics require reasoning rather than memorisation: finding net force, understanding buoyancy, calculating work and energy, or choosing the right method to separate a mixture. Working through varied questions helps students spot misconceptions early, see which topics need another look, and get used to question formats before the real test.
App review: Science M.2 Practice by ChatStick
The app is built specifically for Mathayom 2 (Grade 8) students. Its content follows the indicators of Thailand's Basic Education Core Curriculum (2017 revision) and the content scope set by IPST. Explanations go beyond the answer key: they say why the correct choice is right, why the other choices are wrong, and offer simple memory tips. A short summary appears before each practice session. Note that the question content is in Thai.
All 8 learning units covered
Nature of science
Solutions
The human body
Motion and force
Work and energy
Separation of substances and their uses
Earth and change
Energy resources
Hand-drawn vector illustrations help visualise tricky concepts such as net force, buoyancy, blood circulation and the separation of substances.
Key features
1,000+ questions: spread across all 8 units, each with a detailed explanation
Multiple practice modes: by chapter, Quick 10, random questions, daily missions, timed practice and mock exams
Weak-spot review: revisit wrong answers, saved questions, and practice weak topics
Performance analysis: accuracy by chapter, topic and difficulty, an exam-readiness score, and suggestions on what to review next
Motivation system: collect pearls, unlock achievements and keep a study streak, with encouragement from Nong Welly, a whale scientist mascot who never scolds or pressures
Works offline: lessons, questions, explanations and statistics are available without internet
How to get the most out of the app
Start with chapter practice for the unit currently being taught at school, and read the short summary first.
Read every explanation, including for questions you got right, to understand why the other options are wrong.
Use Quick 10 or daily missions for short, regular sessions.
Check the analysis screen for weak topics, then drill them with weak-spot review.
Before the exam, take a timed mock exam and check your exam-readiness score.
Who benefits most
M.2 students: who want to reinforce what they learn in class, prepare for midterm and final exams, or build a solid science foundation before moving up to M.3
Parents: who want their child to practise with fully explained exercises and to see from the statistics screen which topics still need work
Teachers: looking for extra curriculum-aligned practice they can recommend for home study
Because the app is free to start and works offline, it also suits short study sessions on the way to school or between classes, without worrying about mobile data.
Tip: 10–15 minutes of practice every day usually works better than one long cram session the night before a test. Consistency also keeps your study streak and exam-readiness score moving in the right direction.
App information
Price: free to download and start learning; optional one-time “Unlock All Features” purchase of ฿99 for lifetime access, with no auto-renewing subscription
Optional: watch a short ad for temporary premium access once per day
Compatibility: iPhone and iPad (iOS / iPadOS 18.4 or later), Mac with Apple M1 chip or later (macOS 15.4 or later), Apple Vision (visionOS 2.4 or later)
Size: about 27.4 MB
Category: Education, rated 4+
Developer: ChatStick Company Limited
Frequently asked questions
Who is this app for?
Mathayom 2 (Grade 8) students who want to improve in science and prepare for exams, parents looking for quality practice material, and teachers who need curriculum-aligned exercises.
Is it aligned with the Thai curriculum?
Yes. Content follows the indicators of the Basic Education Core Curriculum (2017 revision) and IPST's content scope, covering all 8 learning units.
Is it free?
You can download it and start learning for free. All content can be unlocked with a one-time ฿99 purchase; there is no subscription.
Does it work without internet?
Yes. Lessons, questions, explanations and statistics all work offline.
Conclusion
If you are looking for a complete, well-explained way to practise Grade 8 science that fits in your pocket, Science M.2 Practice by ChatStick is worth trying. Download it for free and start with the unit you are studying right now.
See all ChatStick apps on the ChatStick App Store developer page
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