Read each item carefully. Write the letter of the best answer. 1. In Part A, one ball moved farther from the starting line than the other. What could have caused one ball to roll farther? A. It was lighter. B. It was heavier. C. Its surface was rough. D. Its surface was smooth. 2. In Part B, the two balls (clay and marble) rolled about the same distance from the starting line. What characteristic is the same for these two balls to make this happen? A. The marble is as rough as the clay. B. The marble is as heavy as the clay. C. The marble has the same shape as the clay. D. The marble has the same smooth surface as the clay. 3. What if you arranged the four balls used in Parts A and B side-by-side and blew air on them. Which do you think will move the farthest distance from the starting line? A. marble B. big clay ball C. small clay ball D. ping pong ball 4. Think about the ping pong ball and the marble. Which characteristic is the same for both balls? A. color B. hardness C. shape D. size 5. Think about the two clay balls used in the activity. Which characteristic makes the two balls different? A. color B. roughness C. shape D. Size
Answer (1)
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