Which option is part of designing a set of experimental procedures? A. Conducting the experiment
B. Developing a question about a phenomenon
O O O
C. Looking for errors in the collected data
D. Identifying the controlled, manipulated, and responding variables

Astudent looks at ocean waves coming into the beach. an ocean wave with more energy will a) have a greater height. b) have a greater period. c) travel toward the beach faster. d) strike the beach with greater frequency.

Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.

An element becomes a positively charged ion when itloses protons. loses electrons. gains electrons. gains neutrons.