G.
Answer the following statements in one word :
1. Name the liquid that immiscible in water.
2. Name the materials through which objects can not be seen.
3. What is the property of shine of a material called?
What is placing or sorting similar things together called?
4. Which material is generally used for making pens?
5. What is placing and sorting similar things together called.
Answers
Answer:
1. Kerosene (the one with different density)
2. Wood or palstic (opaque materials)
2. Wood or palstic (opaque materials)3.sonority
2. Wood or palstic (opaque materials)3.sonority 4.brass
2. Wood or palstic (opaque materials)3.sonority 4.brass5.sorting
Answer:
1) The classic example of immiscible liquids is oil and water. Water is very polar; the positive hydrogen end of the molecule forms especially strong hydrogen bonds with the negative oxygen end of another water molecule. Oil in this example can be any liquid fat or even motor oil.
2) Glass, water and air. Materials which don't allow light to pass through them completely are called Opaque objects. Objects on the other side of opaque objects cannot be seen at all. Eg: Wood, metals etc.
3) lusture
The brilliant shine over the freshly cut surface of metal is called lusture.
Placing similar things together is called grouping-For example in supermarket grouping is done by keeping similar items on same shelf, which make it easier for us to find the item we need. The process of sorting and grouping objects/things according to some basis is called Classification
4) brass
The points of most ballpoint pens are made out of brass, which is an alloy of copper and zinc. This material is used because of its strength, resistance to corrosion, appealing appearance, and ability to be easily formed. Other parts, like the ink cartridge, the body, or the spring can also be made with brass.
5) Placing similar things together is called grouping-For example in supermarket grouping is done by keeping similar items on same shelf, which make it easier for us to find the item we need. CLASSIFICATION. The process of sorting and grouping objects/things according to some basis is called Classification