You are given a science question (hard-level) and four answer options (associated with "A", "B", "C", "D"). Your task is to find the correct answer based on scientific facts, knowledge, and reasoning. Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D'. There is only one correct answer for each question.
--------
Question: Amanda and Jake learned about kinetic and potential forms of energy within a simple electrical circuit. The circuit they are studying has a battery, wires, and a light bulb. Which is a form of potential energy in the circuit?  
 (A) chemical energy in the battery (B) light energy from the light bulb (C) heat energy lost from the electric wires (D) electrical energy moving through the light bulb

Answer: A


Question: Several horses grazed in a fenced area across from a home. On rainy days, soil would wash down a slope and run toward the home. After the horses were moved a few years later, the soil no longer washed down when it rained. What could account for this change?  
 (A) The grass grew and kept the soil intact. (B) The fence kept the soil contained. (C) The soil was completely gone. (D) The amount of rain decreased.

Answer: A


Question: A chemical property of a mineral is evident if the mineral  
 (A) breaks easily when struck with a hammer (B) bubbles when acid is placed on it (C) is easily scratched by a fingernail (D) reflects light from its surface

Answer:
B