1. Define the following:
(a) Natural materials
(b) Transparent materials
2.
Name any three materials that are (i) transparent (ii) opaque in nature.
3.
Which state of matter (i) can (ii) cannot easily change its shape and volum
Why?
4.
Why do materials diffuse into each other?
5.
Define the term ‘solubility'. How does it change on increasing the temperat
of water?
6.
Name three materials that are (i) soluble (ii) insoluble in water.
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Materials like air, water, and clear glass are called transparent.
opaque in nature are wood
Answer:
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