Introduction to Neutralisation

Slide 1: Title Slide

Introduction to Neutralisation
Year 7 Science | 50 minutes | 22 students (including 5 with SEND)

Slide 2: Learning Objectives

Understand what neutralisation means in chemical reactions.
Identify acids, alkalis, and neutral substances.
Describe what happens when acids and alkalis react.
Use indicators to test for acidity, alkalinity, or neutrality.
Apply the concept of neutralisation to everyday examples (e.g., indigestion remedies).

National Curriculum reference:

Chemistry > States of matter and reactions, KS3 Programme of Study for Science.
Working scientifically > Using models and identifying patterns.
NC Appendix 1: Scientific enquiry relevant for Y7 (observing, measuring, recording).

Slide 3: Starter Activity – Acid or Alkali?

Question Puzzle:
Look at these everyday substances. Which do you think are acidic, alkaline, or neutral?

Lemon juice
Baking soda solution
Water
Soap solution

Task:
On mini whiteboards, write A (Acid), Al (Alkali), or N (Neutral). Ready to compare answers!

Answer Slide:

Lemon juice: Acid
Baking soda solution: Alkali
Water: Neutral
Soap solution: Alkali

Engagement Tip: Use a short Kahoot-style quiz or quick shout-out to involve all pupils, including SEND students (visual and oral cues).

Slide 4: What is Neutralisation?

Explain with Diagram:

Acid + Alkali → Salt + Water
Show a simple equation: HCl + NaOH → NaCl + H2O

Interactive Question:
If acid and alkali mix and cancel each other out, what do you think ‘neutral’ means?

Fun Puzzle: Colour the beaker neutral green if the solution is neutral after mixing acid and alkali.

Slide 5: Main Activity – Experiment with Indicators

Practical Task:
In pairs (including SEND support with clear roles), test solutions using universal indicator paper or litmus paper.

Substances:

Vinegar (acid)
Washing soda (alkali)
Water (neutral)

Questions:

What colour does the indicator turn?
Can you rank these in order of acidity or alkalinity?

SEND Adaptation: Use pictures of indicator colours and a matching game for support learners.

Slide 6: Interactive Challenge – Neutralisation Wordsearch

Find these words in the grid: Acid, Alkali, Neutral, Salt, Water, Indicator

(Fun visual wordsearch tailored for Y7 with colourful design and clear, larger font)

Slide 7: Real-Life Application – Indigestion Tablets

Scenario:
You have heartburn caused by too much acid in your stomach. How can neutralisation help?

Group Discussion:

What kind of medicine might help?
Why does it work?
Can you explain neutralisation in one sentence to a friend?

Differentiation: Provide sentence starters for SEND students, e.g., "Neutralisation is when...".

Slide 8: Plenary – Quiz and Exit Ticket

Quick Quiz (5 Questions):

What is an acid?
What happens when an acid mixes with an alkali?
Name two everyday acids or alkalis.
What colour is litmus paper in acid?
What are the products of neutralisation?

Exit Ticket:
On a small card, write one thing you learned today and one question you still have.

Detailed Lesson Plan Breakdown

Time	Activity	Purpose	SEND Adaptations
0-5 min	Starter: Acid or Alkali quick quiz	Introduce concepts, activate prior knowledge	Use visual aids, verbal prompts
5-15 min	Explanation with diagram and Q&A	Explain neutralisation using simple models	Simplified language, checked comprehension
15-30 min	Practical: Testing substances with indicator	Hands-on learning, apply concept	Role allocations, paired work, clear instructions
30-35 min	Wordsearch Puzzle	Reinforce vocabulary and engagement	Use large fonts, provide printed supports
35-45 min	Real-life discussion on indigestion	Application of learning to everyday life	Sentence starters, group support
45-50 min	Plenary Quiz and Exit Ticket	Assess understanding and reflection	Oral options for exit ticket, verbal quiz

Resources Needed

Mini whiteboards and pens
Universal indicator paper or litmus paper
Vinegar, washing soda solution, water (prepared safely)
Printed wordsearch handouts
Exit ticket cards

Assessment for Learning

Observing correct classification in starter task.
Practical results and written answers during indicator task.
Quiz answers during plenary for immediate feedback.
Exit tickets to plan next lessons and support individual queries.

WOW Factor Ideas for Teachers

Use a colour-changing magic potion theme for acids and alkalis with dramatic reveal on indicators.
Incorporate sound effects or light signals when naming acids/alkalis for kinaesthetic learners.
Use a “neutralisation rap” or rhyme to help students remember the reaction formula.

This lesson plan links directly to the National Curriculum’s emphasis on introducing chemical reactions and developing enquiry skills, while making the concept of neutralisation accessible and fun for all Year 7 students, including those with additional needs.

Teaching Instructions