Question: Choose between "asphalt" and "limestone". Question: Michelle is riding a bicycle on a course that takes her over both limestone and asphalt. She notices that she goes faster on the asphalt than she does on the limestone. She knows this is because the asphalt (A) has more rugged texture (B) has a smoother texture.
Answer: limestone

Question: Choose between "dry floor" and "wet floor". Question: Sliding boots across a dry floor makes them heat up less then sliding them across a wet floor. This means that the _____ is smoother (A) wet floor (B) dry floor
Answer: wet floor

Question: Choose between "metal car roof" and "sand". Question: Molly set her volleyball on the roof of her car and gave it a push. The volleyball rolled faster across the car roof than it did when she pushed the volleyball along the sand of the volleyball court. She deduced that the surface with less friction is the (A) metal car roof (B) sand.
Answer:
metal car roof