Search Results for: Hand made paper
why are they important, what effect do they have and how are they made?
to investigate liquids with different acidities: tap water, household vinegar, lemon juice, lemonade and other beverages. for this experiment, each group needs test tubes and simple indicator paper. the results are subsequently compiled on the chalkboard and discussed. when they evaluate the measurement...
https://www.henkel.com/resource/blob/998742/54183a8b5600074f691d09d26cfe280a/data/cosmetics-teaching-units-teachers.pdf