Dissolving, Mixtures and Changes of State - Self Assessment is part of the lesson Dissolving, Mixtures and Changes of State    Students will learn about dissolving, mixtures and changes of state as part of their learning about properties and changes of materials, as specified by the national curriculum in England: science programmes of study.

<p>This self-assessment sheet is designed for students to evaluate their understanding of key concepts related to solutions, mixtures, and changes of state. The assessment prompts students to consider whether they can identify the different components that make up a solution, such as the solute and solvent. Additionally, it asks if they can recognize a solution as a specific kind of mixture, which implies understanding that solutions are homogeneous mixtures where substances are uniformly distributed.</p>

<p>The self-assessment also encourages learners to reflect on their ability to explain the process of dissolving, which involves a substance (the solute) being incorporated into a liquid (the solvent) to form a solution. Furthermore, it checks if students can describe the changes of state – such as melting, freezing, vaporization, condensation, and sublimation – as reversible processes. This is an important concept in understanding the physical changes that substances can undergo without altering their chemical composition. The sheet includes a section for teacher feedback, allowing for a dialogue between the student and teacher regarding the student's comprehension of these scientific principles.</p>

Dissolving, Mixtures and Changes of State - Lesson Plan is part of the lesson Dissolving, Mixtures and Changes of State    Students will learn about dissolving, mixtures and changes of state as part of their learning about properties and changes of materials, as specified by the national curriculum in England: science programmes of study.

Dissolving, Mixtures and Changes of State - Lesson Plan

Dissolving, Mixtures and Changes of State - Teacher Explanation is part of the lesson Dissolving, Mixtures and Changes of State    Students will learn about dissolving, mixtures and changes of state as part of their learning about properties and changes of materials, as specified by the national curriculum in England: science programmes of study.

Teacher Explanation

Dissolving, Mixtures and Changes of State - Teacher Explanation

Dissolving, Mixtures and Changes of State - Objectives Labels is part of the lesson Dissolving, Mixtures and Changes of State    Students will learn about dissolving, mixtures and changes of state 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

Dissolving, Mixtures and Changes of State - Objectives Labels

Dissolving, Mixtures and Changes of State - Results Tables is part of the lesson Dissolving, Mixtures and Changes of State    Students will learn about dissolving, mixtures and changes of state 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

Dissolving, Mixtures and Changes of State - Results Tables

Dissolving, Mixtures and Changes of State - Presentation is part of the lesson Dissolving, Mixtures and Changes of State    Students will learn about dissolving, mixtures and changes of state as part of their learning about properties and changes of materials, as specified by the national curriculum in England: science programmes of study.

Dissolving, Mixtures and Changes of State - Presentation

<p>This lesson focuses on teaching pupils how to demonstrate that dissolving, mixing, and changes of state are reversible changes. They will learn how to compare and group everyday materials based on properties such as hardness, solubility, transparency, conductivity, and response to magnets. This lesson covers topics learned in previous years including states of matter, properties of everyday materials, and how to change the shape of solid objects.</p> <p>The cross-curricular links include ICT, where pupils can research the contents of seawater, and Maths, where pupils can create graphs of their experimental results. Additionally, pupils can learn about the history of metalworking and the transition from Bronze to Iron Age. Some common misconceptions, such as pure orange juice being a pure substance and air being a single substance, will be corrected in this lesson.</p> <h2>Keywords</h2> <ul> <li>Solute</li> <li>Solvent</li> <li>Solution</li> <li>Dissolving</li> <li>Soluble</li> <li>Insoluble</li> <li>Saturated</li> <li>Mixture</li> <li>Reversible</li> </ul> <h2>Influential Scientists</h2> <ul> <li>Mary Maynard</li> <li>Daly</li> <li>Linus Pauling</li> <li>Rosalind Franklin</li> <li>Stephanie Kwolek</li> </ul> <h2>Important Lesson Guidance</h2> <p>Citric acid and bicarbonate of soda are needed for the activity and can be obtained from a local secondary school or online. Bicarbonate of soda can also be purchased from a local supermarket.</p> <h2>Activity: Making a Solution</h2> <p>In this activity, each pupil in the group will be given a clear plastic cup and a solid such as salt, sugar, sand, or soil. They will fill the cup with half water, add one teaspoon of the solid, and observe if the solid dissolves. The group will share their results and fill in the table to determine if the solid is soluble or insoluble.</p> <h2>Activity: Solubility of Solutes</h2> <p>In this activity, each pupil will have their own cup, solute (salt, bicarbonate of soda, granulated sugar, or citric acid), and a set of measuring cylinders. They will measure 30ml of water, add a flat teaspoon of the solute, and stir well. The pupils will observe the water to see if the solute has dissolved and repeat the process until the saturation point is reached. The pupils will record their results and rank the solubility of each solute.</p> <p>The science behind this activity is explained by the solutes moving into the gaps between water particles when they dissolve. Once the spaces are filled, no more solute can dissolve and the saturation point is reached. The pupils will learn that the four solids being tested are solutes and the water is the solvent.</p>

Dissolving, Mixtures and Changes of State

Science

Year 5

Properties and Changes of Materials

Dissolving, Mixtures and Changes of State - Self Assessment

Pzaz is a specialist, primary science provider, with schemes written for the non-specialist primary teacher. Created by a science education expert, Pzaz covers every statement of the National Curriculum for Reception to Year 6.