Mrs. smith went jogging. What is the characteristic of life being described?

Idon't understand what to put on the left lines i'm confused can anyone ?

Identify the electromagnets with poles that are reversed from the electromagnet shown above

How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.