Final answer:
The tool mentioned is for melting small pellets in an electric skillet, commonly used in arts and crafts. The activity, which may include an experiment with oils and water, serves an educational purpose and requires proper safety precautions. A camera is likely used to document the process.
Step-by-step explanation:
The tool that requires a small electric skillet to melt small pellets is most likely used in an arts and crafts setting. The process involves melting the pellets on a controlled heat source such as an electric skillet, then utilizing the molten material for crafting purposes. The reference to using a large flat tray with raised sides, like a baking tray, suggests a setup for an activity that involves the melting and molding of materials, probably for creating shapes or casting objects.
Small volumes of various oils like motor oil, lighter fluid, or penetrating oil, and cooking oil, along with water, seem to be part of an experiment or demonstration, possibly related to physical properties and reactions of different liquids. A camera in this situation would be used to document the results or process, which is an important aspect of many crafts and science experiments.
When conducting such an activity, safety precautions should be taken, especially when working with heat and flammable substances. Educators or guardians should oversee the process to ensure a safe and educational experience for middle school students.