Which is a Endothermic or Exothermic Reactions?

baking soda and vinegar mixing

endothermic reaction

breaking a chemical sports pack

endothermic reaction

electrolysis

endothermic reaction

lightning energizing nitrogen and oxygen in the air

endothermic reaction

photosynthesis

endothermic reaction

burning

exothermic reaction

fireworks

exothermic reaction

lightning bug's tail glowing

exothermic reaction

respiration

exothermic reaction

yeast in warm water digesting sugar

exothermic reaction