During an experiment a thermometer was placed in a beaker containing hydrogen peroxide. The following observations were recorded when yeast granules were added to hydrogen peroxide.

Observation 1: Fizzing and bubbling took place.
Observation 2: The temperature began to rise.

Based on the observation, justify the type of change (physical or chemical) that took place.

I believe it is chemical but use this and you can decide.

Explanation:

A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding.

b i think it’s a water wheel turning in a stream

it is the most commonly accepted one