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Humus Teacher Resources
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In this composition of soil worksheet, students study the make-up of soil by identifying the amount of air in the soil, the amount of water in the soil, the size of the mineral grains in the soil and the proportion of humus in the soil. Students follow directions to determine the amount of each component of the soil and answer 2 analysis questions.
Students explore decomposition and soil health by creating their own garden. In this agriculture lesson, students build a "lasagna garden" with organic matter found in the area and plant perennials native to their region. Students are given the responsibility of watering, mulching, and maintaining paths through the garden.
Students investigate the forest ecosystem to learn of the living and non-living elements of the soil. In this ecosystem lesson, students examine soil for twigs, moss, fungi, leaves, roots and other matter. Students complete a worksheet. Students discuss and recognize decomposition of objects in the soil.
Scientists define and discuss decomposition, and watch pumpkins decompose and return to soil in classroom experiment. They record the date the experiment began, chart changes in pumpkins on a calendar, count how many days it takes pumpkins to decompose, and interpret results of experiment in small groups. Finally, they discuss the purpose and importance of composting and recycling.
Fourth graders describe the various kinds of soils and how plants and animals are affected by them. They describe the baic needs of plants, scoring at least a 3 or 4 on a 4-point rubic. Students are able to predict and/or infer what environmental factors must be present for organisms to survive and reproduce, scoring at least 3 on a 4- point rubic.
Students explore how water has the power to erode, how developing the land (building roads, buildings and parking lots) increases the amount of water reaching our rivers, and how this greater quantity of water increases erosion. They define erosion and explain why erosion has increased in the river.
Students investigate earthworms. In this worm biology lesson, students read the book Wonderful Worms and make a list of facts and opinions about worms. Students then practice identifying parts of the worm's body by labeling a diagram. In the exploration segment of the lesson, students create worm bins and discuss the responsibilities of taking care of the worms. Students observe their worms in the bins for the next several weeks.
Students explore insect life by examining rotting fruit. In this soil analysis instructional activity, students identify the importance of earthworms in compost and their positive influence on plant health. Students view a decaying fruit in their class and complete a decomposition worksheet.