When discarding water in a cup

Let's take a look!

What kind of experiment is this?

Experimental procedure and explanation:

• Float an empty can in water to create a floating island, and place a cup of water on the island. Is the water level rising when this water is transferred to the water tank or does it fall?
• Also, think about the reason.

[Keywords]	Buoyancy
[Related items]	When ice on a floating island melts
[Reference]	“The Wonders of Flow,” Japan Society of Mechanical Engineering, Kodansha Blue Backs, P45-46. “Illustrated Fluid Dynamics Trivia,” by Ryozo Ishiwata, Natsume Publishing, P188-189.

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