Acids, Bases and pH Scale Worksheet

A three-page junior Chemistry worksheet covering acids, bases, indicators and the pH scale. Students interpret indicator colours, classify substances using pH values, identify common laboratory acids and bases, and explore acids and bases found at home.

What’s included:

• 15 questions across four sections: indicators, universal indicator and the pH scale, interpreting pH values, and laboratory acids and bases
• Word banks to support students with the first two sections
• A pH scale from 0–14 for students to colour in, with colour hints, acidic/neutral/alkaline labels and everyday examples
• A litmus results table and questions on pH, acidity and alkalinity
• An application question on antacids
• An extension research task investigating the pH of five household substances, their potential dangers, and the colours of red cabbage indicator
• A separate answer key, including a completed universal indicator pH scale and example research answers
• Colour and black-and-white versions
• Print-ready PDF and editable Word (.docx) formats

Suitable for:
Junior Chemistry lessons, revision, independent work or homework on acids, bases, indicators and pH.