Year 4 - Science
Melting temperatures: plan
Introduction to states of matter and changing states
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit explores the properties of solids, liquids, and gases, and how materials change state when heated or cooled. It covers evaporation, condensation, and the water cycle, with a focus on practical enquiries, careful observations, accurate measurements, and presenting findings.
Lesson Summary
You will learn to plan how to find the temperatures at which some common materials melt.
Key Notes
- The process in which a material in the solid state changes to the liquid state is called melting.
- The melting temperature is the temperature at which a solid changes to a liquid.
- Different materials have different melting temperatures.
- Scientists ask questions about the melting temperature of different materials and plan how to answer them.
Vocabulary To Learn
- solid: A solid has a fixed shape and volume but some solids can change shape when a force is applied.
- liquid: A liquid can flow, has a fixed volume and takes the shape of the bottom of its container.
- melting temperature: The melting temperature of a material is the temperature at which it changes from solid state to liquid state.
- degrees Celsius: Temperature is measured in degrees celsius (°C).
Common Mistakes To Avoid
- Children may think that only common materials melt at room temperature or that when something melts, the liquid is a different substance to the original solid.
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
The process in which a material in the solid state changes to the liquid state is called melting. The melting temperature is the temperature at which a solid changes to a liquid.
2. Define this scientific word and use it in context. 'solid'
A solid has a fixed shape and volume but some solids can change shape when a force is applied. Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: Children may think that only common materials melt at room temperature or that when something melts, the liquid is a different substance to the original solid. Correction: Children are shown a range of materials with different melting temperatures, ranging from below to above room temperature. They are taught to refer to materials in a way that highlights the fact that the material is still the same substance.
More Lessons In This Unit
- Changing state: gas to liquid Study Guide
- Changing state: liquid to gas Study Guide
- Changing state: liquid to solid Study Guide
- Changing state: solid to liquid Study Guide
- Comparing and grouping solids, liquids and gases Study Guide
- Evaporation and condensation in the water cycle Study Guide
- Everyday examples of changing state: solids and liquids (non-statutory) Study Guide
- Everyday examples of evaporation and condensation (non-statutory) Study Guide
- Melting ice caps and glaciers (non statutory - Climate Change & Sustainability) Study Guide
- Melting temperatures: do and review Study Guide
- Melting temperatures: research Study Guide
- Properties of solids, liquids and gases Study Guide
- Temperature and evaporation: do and review Study Guide
- Temperature and evaporation: plan Study Guide
- Thermometers and data loggers Study Guide
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