☰ Contents · Technology

Properties of wood and hand tools

Lessons 1–2 · 2 lessons · Mehnat ta’limi (Texnologiya) – Labour Education (Technology), textbook for Grade 7 of general secondary schools. Ministry of Public Education of Uzbekistan. Sharq Publishing, Tashkent, 2016/2017 (authors not named in the extracted text)
Answers are for parents and teachers.
1
Write the three hardness groups of wood and two trees for each.
2
With an adult, find a wooden item at home and write whether its wood seems soft or hard and why.
3
A sample of 45 g weighs 36 g after drying. What is its moisture in per cent?
4
Draw a table comparing cross-cut and rip saws.
5
Write five safety rules for working with a chisel.