Completar Frases Endothermic reactions: Fill in the gapsVersión en línea Complete the text por Pilar Maldonado Manso 1 Endothermic colder heat energy reactions injury decrease reactions that take in from the surroundings . The energy is usually transferred as energy , causing the reaction mixture and its surroundings to get . The temperature can also be detected using a thermometer . Endothermic can be used for everyday purposes . For example , certain sports cold packs use endothermic reactions .