Slide 1: Count the Ribs 1. Count the ribs of the pumpkin in the photo. 2. Use the to record the number of ribs. 3. Count the number of ribs on your pumpkin. 4. Use the tool to record the number of ribs. Slide 2: Float or Sink? 1. Predict whether your pumpkin will float or sink. 3. Use the tool to write the number of people who predict the pumpkin will float and sink. 4. Use the tool to finish the sentence: We think the pumpkin will ___________. Slide 3: Float or Sink? 1. Use to take a photo of your pumpkin floating or sinking. 2. Use to record what happened.