Question:
Use evidence from the fact that friction occurs when two object 's surfaces move against each other to answer the following question. OPTIONS:
- river stones smashing
- hands clapping
- mirrors pressing together
- stone falling "There is more friction the more rough a surface being touched has, so the most friction would be found in"

Answer:
river stones smashing

Question:
Use evidence from the fact that a mammal usually nurses its young to answer the following question. OPTIONS:
- whiskers
- toes
- tail
- areola "If a mother mammal wants to give her offspring proper nutrients, she would utilize her"

Answer:
areola

Question:
Use evidence from the fact that if battery in an electromagnet is active then the nail in the electromagnet will become magnetic to answer the following question. OPTIONS:
- A construction nail
- A plastic nail
- A nail box
- A wooden nail "What will become magnetic in an electromagnet if the battery becomes active?"

Answer:
A construction nail