Acids and Bases

Acids and Bases in IB MYP Grade 4 Chemistry

In IB MYP Grade 4 Chemistry, Acids and Bases gives advancing learners (ages 14–15) the chance to practise understanding the pH scale, analysing acid-base reactions and applying acid-base theory quantitatively.

MYP Chemistry is assessed against four criteria (A: knowing and understanding, B: inquiring and designing, C: processing and evaluating and D: reflecting on the impacts of science). Regular practice with acids and bases builds the knowledge and skills those criteria reward.

What learners practise

Understanding the pH scale
Analysing acid-base reactions
Applying acid-base theory quantitatively

For students

Work through the worksheets, practice questions and revision resources at your own pace. Check your answers, then redo anything that felt tricky and explain each answer in your own words.

For revision

Use these resources for homework, end-of-unit revision and catching up on anything missed in class.

For teachers

Use acids and bases activities as a starter, homework or retrieval practice, and mix free and premium resources to differentiate.

Study tip

Link every fact to an everyday example. Ideas you can connect to real life are much easier to remember and apply.

Quick answers

Who is the Acids and Bases page for?

It is for IB MYP Grade 4 Chemistry learners, typically aged 14–15, and for the parents and teachers who support them.

Are acids and bases resources free?

Many are. Each resource shows a clear Free or price label, so you can start with the free ones and add premium resources when you need more practice.

How should I use these resources?

Pick one resource, complete it without help first, then check and correct. Repeating this little and often is more effective than one long session.

Keep exploring

Chemistry