Ice House Museum instructor Kenneth Thompson, center, watches as Maranacook Community Middle School students cut out large ice blocks Wednesday on Maranacook Lake in Readfield.

Todd Thompson, left, tosses a grappling hook onto an ice block so that Kenneth Thompson, right, and students can pull it out Wednesday on Maranacook Lake in Readfield. Maranacook Community Middle School students spent most of their school day on the ice learning about ice harvesting and other outdoor activities.

Todd Thompson saws ice as Sofia Michaud uses a breaker bar to knock a block loose Wednesday on Maranacook Lake in Readfield. Maranacook Community Middle School students spent most of their school day on the ice learning about ice harvesting and other outdoor activities.

Ice House Museum educators and Maranacook Community Middle School students pull up another ice block Wednesday on Maranacook Lake in Readfield. Maranacook Community Middle School students spent most of their school day on the ice learning about ice harvesting and other outdoor activities.