Home soil-testing kits can teach about formal soil testing, chemistry and other aspects of science. However, there are simple soil-testing activities younger children can perform as well.
Soil-testing activities teach children about the science of soil, including the different types and properties. Children also learn about nature, the environment and plant growth. Soil testing provides activities and ideas for science fair projects and other science or environment related projects.
Preschool, kindergarten, and grade schoolchildren can perform simple tests to determine soil quality and differences. Have the children collect different types of soil and determine the differences between the two. Plant seeds in the different soil types to see which sample yields the best growth.
Middle and high school students can perform more accurate and useful tests. Home soil-testing kits for pH, nitrogen, phosphorus and potassium are available in most home improvement and garden centres. Have the kids test different types of soil with the kits. Add items to soil samples such as compost, fertiliser, plant food, coffee grounds, vinegar and other household items and compare the different test results.
Kids of all ages can examine and observe soil pollution. Collect soil samples from different locations and closely examine each one for debris. Add water to the samples, shake, and allow it to rest for a couple hours. Identify the different bits of pollution that float to the top.
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