More reversible changes
I can demonstrate how mixing and dissolving are reversible changes
More reversible changes
I can demonstrate how mixing and dissolving are reversible changes
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- If a change is reversible, it can be undone or changed back to its original state.
- A mixture is material that contains two or more different substances, which can be physically separated.
- When a soluble solid dissolves, it is broken down to become so tiny we can no longer see it, but it is still there.
- Dissolving is a reversible process. Evaporation can be used to recover soluble solids from solutions.
Keywords
State - The three common states of matter are solid state, liquid state and gas state.
Recover - To recover is to get back something that had changed or was taken away.
Reversible - If a change is reversible, it can be undone or changed back to its original state.
Dissolve - If a solid dissolves in a liquid, it mixes so completely with the liquid that it cannot be seen.
Mixture - A mixture can be physically separated.
Common misconception
Changes in state and dissolving and mixing are not reversible processes.
Teaching slides will show which processes can be used to reverse state changes and dissolving. This will be explored and embedded during the practice tasks.
To help you plan your year 5 science lesson on: More reversible changes, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 5 science lesson on: More reversible changes, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 2 science lessons from the Properties, changes and separating materials unit, dive into the full secondary science curriculum, or learn more about lesson planning.
Equipment
Equipment and materials for making lemonade and then to separate the original materials from a sample of it. See additional materials.
Content guidance
- Risk assessment required - equipment
- Exploration of objects
Supervision
Adult supervision required
Licence
Lesson video
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Starter quiz
6 Questions
when a substance changes from its solid state to its liquid
when a solid is broken into very small pieces and disappears
Exit quiz
6 Questions
