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Measuring pH: Indicators, Paper, and Meters Many activities require pH testing, including chemistry titrations, environmental science water quality testing, and biological processes labs. This article covers tools and techniques. View »
Learning Progressions Lesson Summaries for STC Middle School™ View »
BioBuilder Explore innovative STEM education kits by BioBuilder. Learn more and download the manuals. View »
Teacher Geek Resources See what activities your students can do with the Teacher Geek Maker Cart. View »

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