Question: Bill was driving his car to work, and realized that when he was driving on the street, the car moved quicker while using the same amount of throttle as when he was driving on the gravel. This is because there is less friction on the (A) asphalt (B) gravel Do not use A and B to answer the question but instead, choose between "asphalt" and "gravel".
asphalt

Question: Ben was driving his car. He accidentally went off the road into the mud. It was much harder to drive through the mud. There was more heat generated from the car when Ben was driving (A) on the road (B) in the mud. Do not use A and B to answer the question but instead, choose between "mud" and "road".
road

Q: Question: A possum can run very quickly along the forest floor, but not so fast along the tree tops. Which surface puts less resistance on the possum's paws? (A) tree top (B) forest floor Do not use A and B to answer the question but instead, choose between "tree top" and "forest floor".
A: forest floor

Question: Question: Suppose a space ship flew close to Jupiter and also flew close to Venus, which is much smaller. Which planet would be less likely to pull the space ship towards it? (A) Jupiter (B) Venus Do not use A and B to answer the question but instead, choose between "Venus" and "Jupiter".
Answer: Jupiter

*Question*
Question: Kyle is doing sit-ups in the morning, and at night, he naps. The time of day when Kyle will perspire the most is (A) morning (B) night Do not use A and B to answer the question but instead, choose between "morning sit-ups" and "night napping".
**Answer**
morning sit-ups

Q: Question: Sean is riding his tricycle. He pedals out of the garage from the cement floor and onto the bumpier stone driveway. There will be more heat from the wheels on the (A) stone driveway (B) cement garage floor. Do not use A and B to answer the question but instead, choose between "stone driveway" and "cement garage floor".
A: stone driveway