Q2.
Crush a small piece of chalk into dust. Add a little water to the dust to make a paste. Roll
it into the shape of a piece of chalk. Let it dry. Which property of the piece of chalk is
changed while crushing the chalk? Is there any new substance produced? What type
of
change is it
Answers
Answered by
1
Answer:
Every day you come across many changes in your surroundings. These changes may involve one or more substances. For example, your mother may ask you to dissolve sugar in water to make a cold drink. Making a sugar solution is a change. Similarly, setting curd from milk is a change. Sometimes milk becomes sour. Souring of milk is a change. Stretched rubber band also represents a change.
In this chapter we shall perform some activities and study the nature of these changes. Broadly, these changes are of two kinds, physical and chemical
Explanation:
Answered by
3
Answer:
it changed liquid to solid a stone like substance is produced
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