The text boxes in the left panel have been placed in a random order. Restore the original order by dragging the text boxes from the left panel to the right panel.
a) Cold packs used for treating sports injuries work in the same way.
d) Sherbet is a mixture of baking soda and citric acid.
c) When it is mixed with the water in your mouth an endothermic reaction occurs, taking heat energy from your mouth and making it feel cooler.
b) When the pack is broken an endothermic reaction occurs, taking heart from the surroundings and making the pack feel cold.