TASK 1:
Question: The diagram below shows how an igloo is made out of snow.
ANSWER:
The diagram illustrates the process of constructing an igloo using blocks of snow. Overall, the process consists of eight distinct stages, beginning with cutting snow blocks and ending with the completion of a functional igloo. The construction involves shaping, layering, and sealing snow blocks both externally and internally to ensure stability and insulation.
The process begins when hard-packed snow is cut using a snow saw to form building blocks. These blocks are then arranged in a circular pattern to create the base structure, which has a diameter of four meters. As the structure rises, the blocks are shaped so they lean inward to form a dome. Once the main body is built, a hole is carved at the top to allow the insertion of a key block, which secures the entire dome.
After the structure is complete, loose snow is used to fill any gaps between the blocks, particularly on the exterior, to improve insulation and wind resistance. The inner walls are then smoothed out, and air holes are made to ensure proper ventilation. Finally, an entrance is built using smaller blocks, completing the igloo and making it suitable for habitation. (191 words)
