Final answer:
The volume of the alien piece is determined by the water displacement method, calculated as the difference between the final and initial volumes of water. It is 632 milliliters.
Step-by-step explanation:
To calculate the volume of the alien piece found during a night patrol, we use the water displacement method. When the object is submerged in water, it displaces an amount of water equal to its own volume. Before placing the object in the water, the water level was at 1000 mls (milliliters), and after submersion, the water level rose to 1632 mls.
The volume of the alien piece is simply the difference between the final and initial water levels:
- Initial Volume of Water = 1000 mls
- Final Volume of Water = 1632 mls
- Volume of the Alien Piece = Final Volume - Initial Volume
Volume of the Alien Piece = 1632 mls - 1000 mls = 632 mls