Den-Test Kit bottles-and-containers Potassium Thiocyanate 100ml

Potassium Thiocyanate 100ml

and ruler are made of white polystyrene and feature handles for ease of use

• Easy-to-read

83) Spinal Cord

Den-Test Kit bottles-and-containers Potassium Thiocyanate 100mlDen Test is a science experiment which allows students to cultivate bacterial growth from their own teeth. See the difference in bacteria growth development from the "before brushing" and "after brushing" samples. Used also to illustrate bacterial growth on dirty hands, desk tops, money, etc. Includes 24 sterile petri dishes, 48 sterile swabs, 2 bottles agar gel and instruction manual. Grades 5 10. Den Test is a science experiment which allows