Spike@School v4.0 Stream monitoring http://www.paekakariki.school.nz/579/image_galleries/10-envirogroup-photos/categories/26-stream-monitoring.rss en-nz Kara and Robyn use the water clarity tube http://www.paekakariki.school.nz/files/f5f79f5435b8b385/image_gallery_category_image/images/286/large/Envirogroup_-_stream_002.jpg The Envirogroup http://www.paekakariki.school.nz/files/f5f79f5435b8b385/image_gallery_category_image/images/287/large/Envirogroup_-_stream_001.jpg