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Reed, Megan H.; Jenkins, Tom; Kenyon, Lisa – Science Teacher, 2019
Nitrogen- or phosphorus-based fertilizers, used in agriculture, can run off into nearby waterways during periods of heavy rain or high flow and cause harmful blooms (Paerl et al. 2016), low oxygen (Joyce 2000), and decreased biodiversity (Sebens 1994). Studies of the effects wetlands can have on water and habitat quality (Verhoeven and Meuleman…
Descriptors: Natural Resources, Biodiversity, Grade 9, Ecology
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Rains, Stephanie; Whitworth, Brooke A. – Science Teacher, 2018
Alternative farming techniques are often more efficient and conserve resources more effectively than conventional farming, which can harm the environment with pesticides and synthetic fertilizers (Pimental 2005). To learn the theory, application, and related science concepts of sustainable farming techniques, students can collaborate to create an…
Descriptors: Agricultural Production, Conservation (Environment), Hazardous Materials, Scientific Concepts
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Tas, Erol; Gülen, Salih; Öner, Zeynep; Özyürek, Cengiz – International Electronic Journal of Elementary Education, 2015
The purpose of this study is to research the effects of traditional and web-assisted conceptual change texts for the subject of water chemistry on the success, conceptual errors and permanent learning of students. A total of 37 8th graders in a secondary school of Samsun participated in this study which had a random experimental design with…
Descriptors: Water, Chemistry, Science Instruction, Grade 8
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Costu, Bayram – Chemistry Education Research and Practice, 2008
The aim of this study was to elicit students' conceptions about big bubbles in boiling liquids (water, ethanol and aqueous CuSO[subscript 4] solution). The study is based on twenty-four students at different ages and grades. The clinical interviews technique was conducted to solicit students' conceptions and the interviews were analyzed to…
Descriptors: Concept Formation, Misconceptions, Science Instruction, Scientific Concepts