Answer the questions. Pls don't delete my question.
Answers
Answer:
1)The distance between Guwahati and Jorhat Town is 254 km. The road distance is 296.9 km.
2)A pencil is about 18 cm long.
3)Answer: Very small length like thickness of coin or wire is expressed in millimetres (mm). 1 mm = 10-3 m or 103 mm = 1 m.12-Sep-2019
(II) These materials make up the objects around us, and each of these materials has different properties or characteristics that can be observed or tested. Scientists, technologists and engineers investigate these materials – they experiment with them, compare their properties and relate the results to possible uses.
Types of materials
There are many different types of materials. Some examples of everyday materials are plastics, metals, fabric and glass.
Find out more about plastic products in the article Plastics and recycling.
Find out more about metals and what happens when they mix in the article Metals, alloys and metal compounds.
Ceramic materials are used to make traditional pottery, right through to advanced ceramics used in engineering and medicine. These inventions require scientists to understand the properties of minerals. You can learn more in the article What are minerals?
Wool is another traditional material that has undergone innovation. Investigate the properties of wool and how they link to its uses in the student activity Exploring wool fibre properties.
Some other fascinating, less well known materials include nanofibres, biological materials and composites
(III)Winnowing: The process of separating heavier and lighter components of a mixture by wind or by blowing air is called winnowing.
This method is used by farmers to separate lighter husk particles from heavier seeds of grain.