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  • Hydroponics Using a nutrient-rich water solution and a unique, time-tested approach, you can successfully grow plants with no soil. In a hydroponic system, water does the work. Find out more about this fascinating method and the advantages that make it both appealing and effective. View »
  • How to Make a Good Scientific Model Are your students able to generate observations and construct a scientific model? Use our free scientific model checklist to help guide them. View »
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