Students will plan and conduct an absorbency test on four different materials and be able to explain that when testing materials to learn about their properties, the materials need to be tested in the ...

Most convenience stores or pharmacies have an aisle dedicated to “feminine hygiene” filled with shelves of various menstrual products such as tampons, pads, cups and discs. On the side of each package ...

Guardian journalism is independent. We earn a commission if you buy something through an affiliate link. Learn more. They’re better for the planet than single-use tampons and pads – but which period ...