Question

Short Answer Type Questions.

1 coverision of milk into curd is chemical change justify the statements by giving three
reason

ans

2 What kind of change is the germination of seeds justify your answer

ans

3 explain why tearing a newspaper and burring a newpaper are two different kinds of changes

ans

4. It has been noticed that rusting of iron objects is faster in coastal regions than in deserts.Explain.

ans

5 Write the chemical reaction that occurs during rusting. What are the conditions required for rusting to take place ?

ans

6. Describe galvanisation of iron.

ans


Class 7
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Answer 1

Answer:

first.... when change in curd formation of lactic acid so Chemical change

Answer 2

Answer:

Look at the pictures these are the Answer of Question 1, 2