Activity 4.8 Let us explore What do you observe? Class 7

Activity 4.8 Let us explore Class 7

Activity 4.8 Let us explore (Page 53) Class 7

Question 1.

What do you observe? Class 7

Answer:

Observation: When sulfur is placed in water, no reaction occurs.

Conclusion: Sulfur does not react with water.

Question 2.

We breathe in oxygen, which is a non-metal, and without it, we would not be able to survive. Can you think of any other uses of oxygen? Class 7

Answer:

It is used in hospitals to help sick people and in industrial process like steel production, welding, chemical manufacturing and waste water treatment.