CLOSEOUT SALE! NOW $39.98 (WAS $79.95)
WHILE SUPPLIES LAST
Conduct qualitative tests on samples of water from various sources and identify pH, dissolved oxygen, odor, color, turbidity and coliform bacteria. Students also learn to distinguish between ground, surface, drinking and waste water. Includes sample cups and enough materials to complete six water quality tests as well as Teacher's Guide and reproducible material safety data sheet. Grades 6-12. Kit.