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Science topics ages 7 - 8
Rocks and soils
Curriculum relevance
| Online lesson plan
Offline lesson
plan | Worksheet |
Activity |
Quiz
Offline lesson plan
Objectives
Compare the properties of rocks and relate these properties to their uses
Describe and group rocks on the basis of their characteristics
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National Curriculum
England: Key Stage 2, Science, Sc3 1a, 1d
Wales: Key Stage 2, Materials and their properties, 1.1, 1.4
Northern Ireland: Key Stage 2, Materials, Properties, a, c
Scotland: 5-14 Guidelines, Science, Materials from Earth, Level B, Level D
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Resources required
Copies of the Rocks and soils worksheet printed from the Science Clips website
Rock samples (e.g. slate, marble, chalk, granite, pumice) or pictures of rocks
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Teaching activities
Introduction
Take a short walk around the school grounds, pointing out and asking the children to identify objects made of rocky materials, e.g. brick wall, concrete path. What materials are these structures made of? What properties do they have? What do all these materials have in common? Point out hardness, strength, and inflexibility. Back in class, make a list on the board of all the rocky materials the class has spotted and ask the children if they can think of any more to add to the list.
Activities
Divide the class into groups. Give each group a worksheet and as a class, go through the rocks on the sheet, letting each group handle real examples where possible, or look at pictures if not. Ask each group to nominate one child as scribe and to work through each rock type, writing in a description, its properties, and ideas for what it could be used for. Walk around the groups, showing children examples or pictures of rocks they are not sure about.
Plenary
Use the list of types of rock on the board as the basis for a grid, similar to the worksheet layout. Select children to record their observations from their worksheet into the grid on the board. Ask the children if it is a scientific observation or opinion, e.g. beautiful. Discuss the suggested uses for each rock. Discuss the properties of each rock in order to decide as a class if each suggestion is feasible.
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Extension
Devise a poster to show the dangers of selecting the wrong rocky material for a particular purpose, e.g. a statue made of chalk!
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Suggested homework
Hand out clean copies of the Rocks and soils worksheet. Ask children to use it to record rocky materials they see in their local environment or at home. Children could use this research to compose scientific sentences, such as "The roof is made of slate because slate is impermeable and will keep the contents dry".
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