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Soil and stone |
Soil textures and soil tests |
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See, touch and smell different soils with different textures (can you work out what texture you have?): sand, silt, clay, and loam. |
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Soil and stone |
Soil textures and soil tests |
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Do a soil jar test to find out what percentage is sand, silt and/or clay. Compare soil from different places. Compare with results from soil touch test. |
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Soil and stone |
Soil textures and soil tests |
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Sing a song about soil textures (e.g. "There's three different types of mineral in soil"). |
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Soil and stone |
Soil textures and soil tests |
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Observe how different soils affect the plants which grow there - their health as well as the species composition. |
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Soil and stone |
Soil textures and soil tests |
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Compare the different properties of sand and clay (e.g. how much water and air it holds, what happens when you stand on it, which holds more nutrients etc.). |
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Soil and stone |
Soil textures and soil tests |
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Find out about acidity and alkalinity in soil, how it affects plants that grow there, and how plants affect the pH of the soil (e.g. conifers make it more acidic). |
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Soil and stone |
Soil textures and soil tests |
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Do a soil touch test i.e. rub soil between your fingers - does it have big grains like sand or minuscule grains like clay, or is it soapy like silt? Roll soil into a sausage, can it stay like that (indicating clay)? Try with different soils. |
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Soil and stone |
Soil textures and soil tests |
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Dig a hole to see the different layers of soil, their colour and depth (topsoil, subsoil, bedrock). |
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Soil and stone |
Indicator species |
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Learn that an indicator species is one which, if abundant, healthy and spontaneous (not planted), can tell you something about the local conditions, such as a plant which tells you whether the soil is compacted, wet, dry, acidic, or alkaline. |
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Soil and stone |
Indicator species |
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Observe different plants which grow spontaneously locally, investigate how/whether this relates to the soil there. |