You are cooking beans over a campfire. by the light of the fire, you read that one serving of beans is 120 calories. after eating the beans, you go for a hike along a stream. all of the items described here have energy. identify the form of energy each contains.
potential energy
kinetic energy
options: firewood
beans
flames
hiking
moving water.

The form of energy of each substance contains.
firewood, Kinetic energy
beans, Potential energy
flames, Kinetic energy 
hiking, Kinetic energy
moving water, Kinetic energy

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later