Question

erial to make an object depending on its
and the
for which the object is to be used.
3. The ability of a material to resist scratches and wear is called the
of the material.
4. Which of the following materials is insoluble in water?
(a) Salt
(b) Sand
(c) Sugar (d) Glucose
5. Which of the following is soluble in water?
(a) Mustard Oil (b) Coconut Oil (c) Kerosene (d) Lemon Juice
6.
is dissolved in water to produce soda water.
7. A matter which allows light to pass through it completely is called
8. An opaque object
(allow/does not allow) light to pass through it.
9. A
object allows light to pass partially through it.
Q2. Answer the following questions in brief:
1. Name any five things which can be made from wood.
2. Name any two transparent and two opaque objects.
three properties on the basis of which things can be classified.​

Answer 1

Answer:

4. sand

5. lemon juice

6. baking soda (i think so)

7. transparent object

8. does not allow

9. translucent object

2,1. window, door , table , almirah , stool

2. 2 transparent object - glass, transparent sheet

2 opaque object - wood , metal

• things can be classified as- transparent , translucent, opaque objects
• things from which light can pass are known as transparent and things from which light can partially pass are known as translucent and things from which light can not pass are known as opaque objects
• things from which we can clearly see are transparent like- glass , and things from which we can partially see are translucent like- butterpaper , and things from which we can not see are opaque like- wood

hope it helps you ;)