Grade 8 Science Experiment 1 - Exploring Entropy through Hot and Cold Rubber bands
The purpose of this science fair project is to explore the scientific "Law of Entropy". The Law of Entropy is defined as a measure of the disorder or randomness in a closed system. In other words, a classroom that contains books, papers, and pencils scattered all over the place is considered to have a high amount of Entropy. In contrast, a room that has the books, papers, and pencils neatly stacked together is considered to have a low amount of Entropy.
An item or chemical substance is in a low Entropy state when its components are in a specific "lined" order. An item or chemical substance is in a high entropy state when its components are in a random order. High entropy states release heat, while low entropy states absorb heat.
The temperature of a chemical substance, such as a rubber band, is dependent upon the Entropy state of the chemical substance.
Temperature of the rubber band (A hot rubber band versus a cold rubber band)
A non-stretched or stretched rubber band
- Medium to large size rubber bands
- Rubber bands of all different sizes, lengths, widths, and thickness
- Paper, pencil
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