Ward's World Activity Guides

Ward's World Crushing Can Activity

View, download, and print free resources for your science classroom.

Issue link: https://wardsworld.wardsci.com/i/1353277

Contents of this Issue


Page 2 of 2

Page 3 Crushing Can (continued) + ward ' s science 5100 West Henrietta Road • PO Box 92912 • Rochester, New York 14692-9012 • p: 800 962-2660 • wardsci.com Find materials for this activity at wardsci.com. Discover more free activities at wardsworld.com Teaching notes: The imploding can demonstrates several scientific concepts: • Water is a liquid below 212°F (1000C) and a gas (steam, water vapor) above 212°F (i.e., the boiling point of water). • Water expands to approximately 600 times its liquid volume when heated above 212°F. • The hot water vapor produced displaces almost all the air inside the soft drink can. • The hot gas molecules are the same pressure as the air outside the can. Hot water vapor condenses into liquid water when cooled. • The condensed water volume is approximately 600 times less than the previous hot water vapor volume (i.e., there are fewer molecules of water in the gas phase inside the can). • Cold water cools any remaining gas molecules, decreasing their kinetic energy and therefore decreases the number of collisions with the walls of the can. • These factors decrease the pressure inside the can. Atmospheric pressure outside is now much greater and immediately squashes the can while simultaneously forcing water into it. Disposal/Clean-Up: The unused solution can be stored in a sealed and properly labeled container for reuse. Alcohol soaked paper should be rinsed thoroughly with water after using it.

Articles in this issue

Links on this page

Archives of this issue

view archives of Ward's World Activity Guides - Ward's World Crushing Can Activity