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Science topics ages 10 - 11
Micro-organisms
Curriculum relevance|
Online lesson plan
Offline lesson plan |
Worksheet |
Activity
Online lesson plan
Objectives
Know that micro-organisms are living organisms that are often too small to be
seen
Understand that micro-organisms may be beneficial or harmful
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National Curriculum
England: Key Stage 2, Sc2 5f
Wales: Key Stage 3, Life processes and living things, 5.7
Northern Ireland: Key Stage 2, Living things, Ourselves, c
Scotland: 5-14 Guidelines, Science, Variety and characteristic features, Level
F
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Resources required
Online activity from Science Clips website: micro-organisms
Picture examples: Bacteria, Fungi, Viruses, Beneficial microbes, Harmful
microbes
Labels: Bacteria, Fungi, Viruses, Beneficial microbes, Harmful microbes
Reference books, CD-ROMs, magazines
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Teaching activities
Introduction
Remind children of the work they did on teeth and eating. Can they explain how
they should look after their teeth and recognise why they need to do so? Remind
children that in their work on Interdependence and adaptation, they discovered
living things decompose on death.
Activities
Show the labels and discuss the definition of the terms bacteria, virus and
fungi. Can the children name examples of each? Display the pictures. Can the
children identify which organism belongs to which category?
Open the online activity on an interactive whiteboard. Explain to the class
they are looking at a garden and kitchen scene. Explain that as you move your
cursor over the scene, the cursor changes to a camera when there is a
micro-organism to be spotted (such as in the compost heap or in the rotting
food). A click of the mouse collects the micro-organism. By clicking on the
magnifying glasses, you can find additional information on each example. Click
the Sorter button. Explain they must sort the photos into harmful or beneficial
micro-organisms.
Divide the class into groups with a computer for each group. Let each group
work through the Spotter and the Sorter parts of the activity. Encourage each
group to look at the information screens by clicking on the magnifying
glasses.
Plenary
On the interactive whiteboard, complete the Spotter and Sorter parts of the
activity with the whole class. Discuss safety when looking at real
micro-organisms. Discuss the harmful effects of micro-organisms (illness,
disease, rot). Discuss how bacterial disease can enter the body (breathing in,
drinking water, eating food, cuts) and ways we can help to prevent this.
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Extension
Research examples of micro-organisms at work from magazines, newspapers,
CD-ROMs, the internet and reference books to make a display.
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Suggested homework
Look for examples of beneficial and harmful bacteria at home. Make a list to
add to a display in the class or to report back to the class.
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