Classify the following processes as exothermic or endothermic.
Burning of match stick

Explanation

To classify the process of burning a matchstick as exothermic or endothermic, we can follow these steps:

### Step 1: Understand the Definitions
- **Exothermic Reaction**: A reaction that releases heat to the surroundings.
- **Endothermic Reaction**: A reaction that absorbs heat from the surroundings.

### Step 2: Analyze the Process
- When a matchstick is struck, it ignites and burns. This process involves a chemical reaction where the materials in the matchstick (like phosphorus and sulfur) react with oxygen in the air.
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