Question: A cutting board is put over a metal sink. Sarah cuts some vegetables on the cutting board. The cutting board slides around. She moves the cutting board onto a wet dish rag on the counter. Then she cuts more vegetables. The cutting board doesn't slide around. Which one of these sticks to the cutting board more safely? (A) metal sink top (B) wet dish rag Do not use A and B to answer the question but instead, choose between "wet dish rag" and "metal sink edges".
metal sink edges

Question: A pleasure boat was cruising through a lake and was forced to slow down when it passed into a sandbar. More heat was generated while the boat was moving through the (A) lake or (B) sandbar Do not use A and B to answer the question but instead, choose between "lake" and "sandbar".
sandbar

Q: Question: A little boy was playing with a toy car. He was moving it across the carpet and also a table top. He noticed that it was easier to move the car on the table top. This is because the table top has (A) more friction (B) less friction. Do not use A and B to answer the question but instead, choose between "table top" and "carpet".
A: carpet

Question: Question: Maggie tried opening a lid after eating popcorn and found she couldn't do it because her hands were too slippery. The oil made her hands have (A) less resistance (B) more resistance. Do not use A and B to answer the question but instead, choose between "oily hands" and "clean hands".
Answer: oily hands

*Question*
Question: Jane's rubber ball seemed to roll faster over smooth plywood than over rougher sand. The _____ has more friction (A) plywood (B) sand Do not use A and B to answer the question but instead, choose between "plywood" and "sand".
**Answer**
sand

Question: New train tracks are more smooth then vintage train tracks. This means that a train travelling over _____ will go a greater distance (A) new tracks (B) vintage tracks Do not use A and B to answer the question but instead, choose between "new tracks" and "vintage tracks".
new tracks