Question: Mary learned that her sheet was smoother than her pillow by rolling her marble over the two items. She also learned that the _____ has less resistance (A) sheet (B) pillow Do not use A and B to answer the question but instead, choose between "sheet" and "pillow".
sheet

Question: Harry noticed that he got a much less smooth ride when travelling with his bicycle over sand than when travelling over pavement. Riding his bicycle over _____ generates less heat (A) sand (B) pavement Do not use A and B to answer the question but instead, choose between "sand" and "pavement".
pavement

Question: A turtle and a hare decide to race around a track. Which one will make it back to the starting line first? (A) the turtle (B) the hare Do not use A and B to answer the question but instead, choose between "a hare" and "a turtle".
a turtle