In Science we looked at different materials and their properties, we wanted to investigate which material was the most waterproof. We tested cardboard, plastic, felt and aluminium foil and found that plastic and aluminium foil were both waterproof as they did not let any water through. We also found out that paper and felt were absorbent as they let water through. Felt was the most absorbent!
Can you think of why felt was the most absorbent?
What type of material is it made from?