QCA Unit: |
Sci-4C (Adapted) |
Subject: Science
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Name: |
Keeping warm using the Sun |
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About the Unit: |
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| Through this unit pupils build on their ideas about temperature as a measure of how hot or cold objects are and learn about thermal insulators as materials which can help to keep things warm or cool. Experimental and investigative work focuses on: •turning ideas into a form that can be investigated •using thermometers to make careful measurements of temperature •identifying and suggesting explanations for patterns and trends in results and using results to draw conclusions. The unit helps children understand that much of the energy we use to heat water is producing carbon dioxide as a by product and that this causes global warning and climate change. The unit also shows pupils how the Sun’s energy can be captured to create heat - solar thermal collectors heat water in a way that doesn’t harm the environment. The unit concludes by letting pupils construct their own collector to heat water. Alternative suggestions include heating food in a solar cooker or building a useful greenhouse that captures the Sun’s energy. |
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Where the Unit Fits In: |
Expectations
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| This unit is made up of some of the lessons from the Our Planet series on Solar Power for Key stage 2. If you are planning to teach the whole series of lessons, then you need not look at this document - it is specifically designed for those teachers wishing to simply teach the Science strand. Please note that if you are planning to teach the D & T or Geography unit alongside it, you will find some of the same lessons used because they cover two subjects (e.g. Science and Geography). In this case combine the 2 units and teach the lessons consecutively. Builds on Unit 2D ‘Grouping and changing materials’, Unit 3C ‘Characteristics of materials’ and Unit 4F ‘Circuits and conductors’ Children need: •to be able to identify materials •to be able to measure some quantities eg length in standard measures. Links with Units 3F, 4A, 4D, 5C, 5D, 6A and geography. |
Most Children Will:recognise that temperature is a measure of how hot or cold objects are; identify some materials that are good thermal insulators and some everyday uses of these; recognise that the same materials keep cold objects cold as keep warm objects warm; use thermometers to measure temperatures; suggest how to investigate a question; construct tables for their results and offer simple explanations for results |
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Some children will not have made so much progress and will:recognise that temperature is a measure of how hot or cold objects are; identify some everyday uses of thermal insulators; use thermometers to measure temperature . They will know that some energy sources create carbon dioxide and others don’t. |
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Some children will have progressed further and be able to:recognise that objects cool or warm to the temperature of their surroundings when they are left; recognise that metals are both good thermal and good electrical conductors. Understand that energy consumption underpins much of our lifestyle. Make a solar collector that is sophisticated and understand why it works well and how to improve it further |
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| How we live affects our planet Lesson: KS2 Solar 1 |
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Lesson Objectives•To begin to understand the terms ‘global warming’ and ‘climate change’.•To understand in simple terms, how climate change will affect wildlife, using the example of polar bears. •To think about positive ways we can act now to slow down climate change. •To understand that there are forms of energy production that don’t produce carbon dioxide – e.g. solar and wind power. |
Suggested Activities
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Learning OutcomePupils will be able to explain the terms 'climate change' and 'global warming'.They will be able to understand how our actions affect other animals. |
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| Collecting heat from the Sun Lesson: KS2 Solar 5a |
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Lesson Objectives•To know that the Sun is a source of energy•That surfaces in different locations receive and retain different amounts of solar energy •That the sense of touch is not the most accurate way of judging temperature •To record information in a table |
Suggested Activities
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Learning OutcomePupils will understand that different colours absorb or reflect the heat from the Sun.They will design and carry out an experiment to test this. |
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| Water heated by the Sun Lesson: KS2 Solar 5b |
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Lesson Objectives•To know that a solar thermal collector can heat water without causing global warming.•To understand the basic principle of an alcohol filled thermometer and use it to make careful measurements of temperature. •To know that temperature is a measure of how hot or cold things are. •That something hot will cool down and something cold will warm up until it is the same temperature as its surroundings. •To investigate whether a dark coloured surface will absorb more solar energy than a light coloured surface. |
Suggested Activities
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Learning OutcomePupils will understand that the Sun's energy can be used to heat water.They will be able to increase the heat of the water by using colour. |
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| Who can keep their water hottest? Lesson: KS2 Solar 5c |
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Lesson Objectives•To know that insulation helps keep water warm.•To turn an idea about how to keep things warm into an investigation. •To plan a fair test deciding what to change, what to keep the same and what to measure. •To make careful measurements of temperature at regular time intervals. •To record results in a table and to use these to draw conclusions. •To know that some materials are good thermal insulators. |
Suggested Activities
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Learning OutcomePupils will use their knowledge of insulation to compete with other groups to keep their water the hottest. |
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| Thermal insulators and conductors Lesson: KS2 Solar 5d |
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Lesson Objectives•To know that in everyday life we do things that transfer heat energy.•To understand that some materials help the transfer of heat energy i.e. conductors. •To know that some materials hinder the transfer of heat energy i.e. insulators. •To know that we can often identify good thermal conductors and insulators by touch. •To know that solar thermal systems use both thermal conductors and insulators. |
Suggested Activities
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Learning OutcomePupils understand what thermal insulators and conductors are and can explain their properties.They can list examples of each. |
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| Create solar hot water by making a solar thermal collector Lesson: KS2 Solar 5e |
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Lesson Objectives•To use thermal conductors and insulators to make a simple solar thermal water heater.•To use a thermometer to measure the performance of the solar thermal collector. •To compare the performance of the collector with others and suggest modifications. •To know that solar energy can be a source of non polluting heat energy. |
Suggested Activities
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Learning OutcomePupils use their knowledge of solar energy, thermal insulators and conductors to design and make a solar hot water heater. |
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