Temperature and evaporation: plan
Lesson details
Learning outcome
I can plan how to investigate how temperature affects the rate of evaporation.
Key learning points
- Evaporation can take place at any temperature.
- Scientists investigate how temperature affects how quickly a liquid evaporates to a gas.
- A fair test investigation involves controlling variables so that only one thing is changed.
Keywords
Evaporation - To evaporate is to change from a liquid to a gas.
Temperature - Temperature is a measure of how hot or cold something is.
Affect - To affect something is to influence or change it.
Variables - Variables are the things that can be changed, measured or kept the same in a comparative or fair test.
Common misconception
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.
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.
Teacher tip
When planning the investigation, encourage children to come up with and discuss a range of possible ideas, including their pros and cons, before they are given time to write down their chosen plan.
Equipment
This is a planning lesson, but it may help children to plan if they have access to thermometers and small dishes or pieces of fabric that could be used to hold water.
Content guidance
Risk assessment required - equipment
Supervision
Adult supervision required
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.In which state is water vapour?
Q2.What is water in the solid state called?
Q3.Which of these states can flow?
Q4.Match the process to the state change which would result.
liquid to gas
gas to liquid
Q5.Which of these will change water from its liquid to its gas state?
Q6.Match the name of the process to the description.
the change of state from liquid to gas
the change of state from gas to liquid
Assessment exit quiz
6 Questions
Q1.In which state does water expand to fill the whole of its container?
Q2.What process causes wet washing to dry?
Q3.What is evaporation?
Q4.At what temperature can evaporation of a liquid take place?
Q5.Which of these things, that can be investigated by scientists, can affect how quickly a liquid evaporates to a gas?
Q6.In a fair test investigation, how many variables should be changed?
To help you plan your 4 science lesson on: Temperature and evaporation: plan, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 4 science lesson on: Temperature and evaporation: plan, 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 Introduction to states of matter and changing states unit, dive into the full primary science curriculum, or learn more about lesson planning.