Here are some examples:

* Melting ice: The process of melting ice (solid water) into liquid water requires heat energy.

* Photosynthesis: Plants absorb light energy to convert carbon dioxide and water into glucose and oxygen.

* Dissolving ammonium nitrate in water: When ammonium nitrate dissolves in water, the solution becomes cold, indicating heat absorption.

In endothermic reactions, the products have higher energy than the reactants, so the system absorbs energy from the surroundings. This absorption of heat leads to a decrease in the temperature of the surroundings.