Acid and Bicarbonate of Soda - Teacher Explanation is part of the lesson Acid and Bicarbonate of Soda    Students will learn about acid and bicarbonate of soda as part of their learning about properties and changes of materials, as specified by the national curriculum in England: science programmes of study.

<p>Welcome to lesson 5.7, where we delve into the irreversible changes involving acid and bicarbonate of soda within the Year 5 unit on properties and changes of materials. This lesson aligns with the National Curriculum's requirement for pupils to understand that certain changes lead to the creation of new materials and are typically not reversible. Such changes include those associated with burning and the reaction between bicarbonate of soda and acid. For safety, it is imperative that pupils wear protective goggles during practical activities, keep their chairs tucked in, stand on their feet, tie back long hair, and ensure no bags obstruct walkways. Given that the chemicals used, such as vinegar and bicarbonate of soda, can irritate the skin, wearing safety gloves is advised, especially for those with skin conditions. The lesson also presents cross-curricular opportunities, allowing pupils to explore the role of acid in etching, graph production, and the historical significance of acids in creating the first battery.</p>

<p>The practical component of the lesson involves classifying substances as acids, neutral, or alkaline using a range of safe household items and indicator papers. Pupils will learn to use the pH scale to determine the acidity or alkalinity of substances like vinegar, cola, and water. Another key experiment teaches pupils how to neutralize an acid, using vinegar and bicarbonate of soda—an important concept in the medical industry for treating conditions like heartburn. The lesson further investigates the reaction between acids and bicarbonate of soda, producing carbon dioxide gas, and explores the concept of endothermic reactions through the mixing of citric acid and bicarbonate of soda with water. This comprehensive lesson aims to provide pupils with a thorough understanding of chemical reactions and their practical implications, ensuring an engaging and educational experience.</p>

Acid and Bicarbonate of Soda - Lesson Plan is part of the lesson Acid and Bicarbonate of Soda    Students will learn about acid and bicarbonate of soda as part of their learning about properties and changes of materials, as specified by the national curriculum in England: science programmes of study.

Acid and Bicarbonate of Soda - Lesson Plan

Acid and Bicarbonate of Soda - Presentation is part of the lesson Acid and Bicarbonate of Soda    Students will learn about acid and bicarbonate of soda as part of their learning about properties and changes of materials, as specified by the national curriculum in England: science programmes of study.

Acid and Bicarbonate of Soda - Presentation

Acid and Bicarbonate of Soda - Objectives Labels is part of the lesson Acid and Bicarbonate of Soda    Students will learn about acid and bicarbonate of soda as part of their learning about properties and changes of materials, as specified by the national curriculum in England: science programmes of study.

Objectives Labels

Acid and Bicarbonate of Soda - Objectives Labels

Acid and Bicarbonate of Soda - Results Tables is part of the lesson Acid and Bicarbonate of Soda    Students will learn about acid and bicarbonate of soda as part of their learning about properties and changes of materials, as specified by the national curriculum in England: science programmes of study.

Results Tables

Acid and Bicarbonate of Soda - Results Tables

Acid and Bicarbonate of Soda - Self Assessment is part of the lesson Acid and Bicarbonate of Soda    Students will learn about acid and bicarbonate of soda as part of their learning about properties and changes of materials, as specified by the national curriculum in England: science programmes of study.

Self Assessment

Acid and Bicarbonate of Soda - Self Assessment

<p>The main focus of this lesson is to explain that some changes result in the formation of new materials, which is not usually reversible. Students will learn about chemical reactions and the signs that indicate a reaction has occurred, such as the formation of gas, heat, or light. They will also learn to identify the products of chemical reactions. The class will also classify substances as acids, alkalis, or neutral based on their pH level, which is a measure of the ability of a substance to produce hydrogen in solution. The pH scale ranges from 1-14, with values below 7 being acidic, values above 7 being alkaline, and 7 being neutral. </p> <p>This lesson is aligned with the previous learning in Year 1 to identify and name everyday materials and in Year 2 to find out how solid objects' shapes can be changed. The activity will involve using pH paper and a variety of substances such as cola, lemon juice, bicarbonate of soda, vinegar, and more to classify the substances as acid, alkali, or neutral. Students will work in groups of four and follow the steps of tearing off some of the pH paper and dipping it into the sample, observing the color change, and making a judgement of the pH level. </p> <p>In the second activity, students will learn about neutralizing acids. They will measure out different amounts of vinegar and bicarbonate of soda, stir the mixture, and test the pH level until the paper turns green. They will repeat the process with different ratios of vinegar and bicarbonate of soda to understand the effect of adding more or less of either substance on the pH level. </p> <h2>Cross-Curricular Links</h2> <ul> <li>DT: Research the role of acids in etching</li> <li>Maths: Produce graphs of experimental results</li> <li>History: Write an essay on the role of acids in the first battery made</li> </ul> <h2>Important Lesson Guidance</h2> <p>Before the lesson, the teacher will need to obtain some cola, bicarbonate of soda, and lemon juice. For the pH classification activity, the teacher has free reign on the substances tested, as long as they are safe for students to handle. The solid samples will need to be mixed with a small amount of water for testing. In the neutralizing acids activity, the equipment required includes clear plastic cups, vinegar, bicarbonate of soda, pH paper, teaspoons, and a measuring cylinder. The students will work in groups of two. </p> <h2>Influential Scientists</h2> <p>Soren Sorensen, Jons Berzelius, Humphrey Davey. </p> <h2>Keywords</h2> <p>Irreversible, Acid, Alkali, pH scale, Neutral, Carbon Dioxide, Neutralization. </p>

Acid and Bicarbonate of Soda

Science

Year 5

Properties and Changes of Materials

Acid and Bicarbonate of Soda - Teacher Explanation

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