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answer the full work sheet
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Answers
Answer:
Q3
1) false
2) true
3)
Q4
a)In the materials other than conductors the molecules do not vibrate so fast to conduct the heat early. so the steel pans have plastic or wooden handles. wood and plastics are bad conductors of heat and thus they are used to make the handles of frying pans because they dont cause any harm to the person cooking the food.
b)Gold is used to make jewellery because of the attractiveness of its luster and because of its rarity. It also doesn't tarnish and doesn't react with air the way a metal like iron does. Therefore, gold is alloyed with other metals to make it stronger.
c)Diamond Drilling is a form of core drilling which uses a rotary drill with a diamond drill bit attached in order to create precisely measured holes. As diamond is the hardest naturally occurring material in the world, it is ideal for creating openings in a range of materials including concrete, metal and glass.
d)No, you cannot usually fix scratches with wax. They may appear to be better, as the wax will “fill in” the scratch temporarily, but most scratches cannot be fixed with wax. That being said, if the scratches are not deep, there are polishing products that are capable of removing these small scratches.
e)Shopkeepers prefer to keep biscuits, sweets and other eatables in transparent containers so that customers can easily see and buy these items. the containers are transparent because customers can see and like to purchase it even they came to buy other things.