The Institute for Research in Schools (IRIS) develops opportunities for secondary students and post-16s from all backgrounds to participate in authentic research in school and make valuable, recognised contributions to the scientific community.
Distinguishing different types of soil
Equipment: Soil Distilled water Spatula Sieve Trowel Instructions: Collect a soil sample using a trowel Remove any small stones and bits by hand or using a sieve Take a small amount of soil and roll it into a ball – add water if necessary - is it sticky or...
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