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The GLOBE Program (NASA-sponsored)

GLOBE Program — Hydrosphere Protocols

GLOBE's hydrosphere protocols are scientist-developed field procedures for measuring alkalinity, conductivity, dissolved oxygen, macroinvertebrates, nitrates, pH, salinity, temperature, and transparency in a local stream, river, lake, or coastal water body. Student measurements are entered into an international research database, which gives a class a real role in a worldwide science effort.

Visit GLOBE Program — Hydrosphere Protocols ↗

What you will find there

  • Ten measurement protocols, from water temperature and pH to macroinvertebrate surveys and a mosquito-habitat mapper
  • Training modules that walk teachers through each protocol before taking students into the field
  • Grade-appropriate learning activities built around each protocol
  • A global data-visualization platform where student measurements join an international dataset
  • Equipment guides describing what each protocol requires to run

Our take

GLOBE lets students contribute to real international research, and the protocols themselves are rigorous and teacher-tested. Free GLOBE training is required before a class can officially submit data, so build that step into your planning timeline.

Pairs well with our materials