The subject of your description must be a technical object (e.g., clock radio, digital thermostat, Roomba, CPAP machine, blender, food processor, etc.). Because you must accurately describe an object in at least 500 words, do not pick something too simple such as a paper clip. Choose a topic that is complex but manageable. Once you have identified a technical object, research it. Take time to learn about what the parts are called, and how the parts work. This might require you to read background information or otherwise inform yourself about the topic.
The post The subject of your description must be a technical object (e.g., clock radio, digital a .