Here is a great graphic organizer that allows the students to connect various topics that they have been learning. This one includes aerobic cellular respiration, photosynthesis, and combustion. The students connect to heat transfers that they learned in the past years. They write the equations, including reactants and products. They write the energy transformations. They will connect all of these different topics and see how they relate to the real life example of drinking hot chocolate by a fire at night. There is a word bank for differentiating the lesson for students who may need it. This can work as a homework assignment, in class assignment, assessment, etc.