Making a prototype is useful because it reduces errors, saves cost and allows testing of the design before making the final product. It ensures the object is practical and well-planned. Class 8 Vocational Education Textbook Work with Machines and Materials Chapter ...
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Wood must be used wisely because overuse leads to deforestation. In areas like the Himalayas, trees grow slowly and cutting them without replacement causes permanent forest loss and environmental imbalance. Class 8 Vocational Education Kaushal Bodh Project 3 Working with Wood ...
I cut a bamboo culm, smoothened the surface and sanded the edges. Then I varnished it for shine. Tools I used included a hacksaw, sandpaper, bench vice and brush. Class 8 Vocational Education Chapter 3 Working with Wood and Bamboo question ...