Year 4 - Science
Temperature and evaporation: do and review
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 investigate how temperature affects the rate of evaporation.
Key Notes
- Scientists make careful observations and measurements, using a range of equipment.
- The results of an investigation can be recorded in different ways.
- Scientists use data they have collected to answer questions.
- Although water can evaporate at low temperatures, the speed of evaporation increases as the temperature increases.
Vocabulary To Learn
- evaporation: Evaporation is the change in state from a liquid to a gas.
- temperature: Temperature is a measure of how hot something is.
- variables: Variables are the things that can be changed, measured or kept the same in a comparative or fair test.
- conclusion: In a conclusion, scientists explain what the results show or mean.
Common Mistakes To Avoid
- Children may believe that water cannot exist in a gas state because they cannot see it. They may also think that evaporation only occurs at high temperatures.
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
Scientists make careful observations and measurements, using a range of equipment. The results of an investigation can be recorded in different ways.
2. Define this scientific word and use it in context. 'evaporation'
Evaporation is the change in state from a liquid to a gas. Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: Children may believe that water cannot exist in a gas state because they cannot see it. They may also think that evaporation only occurs at high temperatures. Correction: Teaching slides explain the existence of water vapour, even though it is invisible. By investigation, children observe and measure that evaporation occurs at all temperatures.
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: plan Study Guide
- Melting temperatures: research Study Guide
- Properties of solids, liquids and gases Study Guide
- Temperature and evaporation: plan Study Guide
- Thermometers and data loggers Study Guide
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