In Science Intensive room 8 went for a field trip around the school with clean paper towels. Guess why we needed the paper towels. Yes! We used it to wipe different surfaces around the school to see how much dust or dirt is on it. Obviously you cant see the dirt in the air but it goes onto different surfaces and makes it dirty. Here our our final results
Clean Paper Towel Dirty Paper Towel
Can you see the Difference?