Fill in the Blanks Endothermic reactions: Fill in the gapsOnline version Complete the text by Pilar Maldonado Manso 1 reactions Endothermic injury heat colder decrease energy 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 .