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  • Soil – it’s much more than dirt. Soil keeps us alive. Without soil, we would be hungry, thirsty, naked, homeless and breathless. Soils differ from location to location and are a range of colours. Around 25% of everything alive on Earth uses soil as a habitat1.

    Soil is also where we dig for treasure. Pick up a spade and see what educational treasures exist in the world beneath our feet.'

    Below are resources for primary teachers related to soil in the Planet Earth and Beyond strand of the New Zealand Curriculum. The first two soil themes (habitat and differences) are suitable for NZC levels 2 and up. The remaining themes (nutrients and climate change) are suitable for NZC levels 3 and up.

    The students thought ‘dirt’ was pretty boring until their eyes were opened to ‘soil’ and what lies beneath the ground. They were fascinated to discover roots, glass, worms and clay. What made a huge impact on them was how important soil is to us and the world in which we live.

    Teacher

    Themes

    Soil is a habitat

    Soil is a habitat
    Niches within earthworms’ habitat
    Activity: Observing soil microbes
    Activity: New Zealand soil creatures

    Did you know there are more things living under the ground in the soil than there are people living above ground? I was amazed by that! It is a bit freaky.

    Cate, year 2 student
    Rights: The University of Waikato Te Whare Wānanga o Waikato

    New Zealand native earthworm O. multiporus

    New Zealand has over 200 known species of earthworms. Most of these are natives and are found nowhere else in the world. Many of our native earthworms live in remote forest habitats so we don’t know much about them.

    Select here to view video transcript and copyright information.

    Soils differ from place to place

    Soils are all different
    What is in soil?
    Soil properties
    Soil names
    Video: Important soil properties
    Activity: Observing soil differences
    Activity: Dig a hole
    Activity: What makes up soil? (includes an interactive graphic organiser)
    Activity: Visual soil assessment

    We dug a MASSIVE hole, and I didn’t know the ground went that far down. When we went deeper, we found different soil like clay2, and it was harder and crumbly. I loved being a scientist.

    Flynn, year 2 student
    Rights: University of Waikato

    Soil formation

    Professor Louis Schipper from Waikato University briefly explains the five factors involved in soil formation.

    Soil and nutrients

    Managing nutrients
    Focusing on phosphorus
    The role of clover
    Video: Phosphorus
    Video: The importance of clover
    Interactive: The terrestrial nitrogen cycle
    Activity: Nutrient pollution
    Activity: Water and nitrate leaching

    Soil is spectacular because it is the main thing to help trees to grow, and trees give us oxygen3 to breathe. If we didn’t have soil, it could get tricky.

    Alyssia, year 2 student
    Rights: University of Waikato

    Fertilisers

    Dr Ross Monaghan talks about fertilisers – what they are and why they are used on farms.

    Soils and climate change

    Inhibiting nitrous oxide emissions
    Farming and environmental pollution
    Activity: Farming and environmental issues

    Rights: The University of Waikato Te Whare Wānanga o Waikato

    Nitrous oxide

    Dr Selai Letica explains some of the causes of nitrous oxide emissions in agricultural soils and why it is important to limit them.

    Select here to view video transcript and copyright information.

    Teacher support materials

    Online professional development

    This online PD session recorded on 3 June 2015 introduces agriculture and horticulture teachers to resources on the Science Learning Hub that support three particular aspects – soils, plant reproduction and management practices.

    SLH and agriculture/horticulture

    Topic planners and Unit plans

    Topic planners offer a suggested pathway through some of the soils resources on the Science Learning Hub.
    Soil theme – Is all soil the same?
    Soil theme - Nutrients

    Unit plans on earthworms, a common soil animal:
    Earthworms (lower primary)
    Earthworms (upper primary)

    Nature of science

    It is important in science to not only build students’ knowledge and understanding of science but to support them to make connections between science concepts and the world around them. Soil is an ideal context for this as it links to many other aspects of science as well as global and local issues, such as growing food and farming practices.

    Useful link

    Visit the Hub’s Pinterest board: We dig soil.

    1. habitat: The natural environment in which an organism lives.
    2. clay: A naturally occurring fine-grained material formed from the chemical weathering of feldspar minerals found in rocks.
    3. oxygen: A non-metal – symbol O, atomic number 8. Oxygen is a gas found in the air. It is needed for aerobic cellular respiration in cells.
    Published 18 February 2016 Referencing Hub articles
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        habitat

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      2. The natural environment in which an organism lives.

        clay

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      4. A naturally occurring fine-grained material formed from the chemical weathering of feldspar minerals found in rocks.

        oxygen

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      6. A non-metal – symbol O, atomic number 8. Oxygen is a gas found in the air. It is needed for aerobic cellular respiration in cells.