water samples
DESCRIPTION
Water samples. Water sinks. The students are ready for walkıng ın the school. Water sınks. old. new. Samples are taken TO ANALYSE. SAMPLE FROM CARBOY. SAMPLE FROM NEW WATER SINK. - PowerPoint PPT PresentationTRANSCRIPT
WATER SAMPLESWATER SİNKS
THE STUDENTS ARE READY FOR WALKING IN THE SCHOOL
WATER SINKS
OLD NEW
SAMPLES ARE TAKEN TO ANALYSE
SAMPLE FROM CARBOY
SAMPLE FROM NEW WATER SINK