Question

Q1. Digital Thermometers are replacing the mercury thermometers. Why?

Q2. Riya and her brother were talking about curd and its benefits….during their talk they also talked about the process of setting curd..Riya’s brother argued that it is not possible to set curd if the temperature is below 32 degree C. Riya ruled out his point with a reason. State the reason given by Riya.

Q3. Why do Sugarcane juice sellers wrap ice blocks in jute bags?

Q4. Riya wrapped her soup container with a woollen cloth to keep her soup hot seeing that her brother wrapped his glass of cold drink with a woollen cloth. How will this help?

Q5. You went out for camping and asked to select a tent out of the 2 tents left, One tent is made of black fabric and the other is made of white fabric. Which one will you choose and why?

( note: Its summer season)

Q6. Why are copper bottom vessels considered better than stainless steel ?

Q7. If you are building a house in Mumbai near the sea, in which direction will you place the windows and Why?

Q8. A and B went to buy a refrigerator, A selected a refrigerator with freezer at the top and B selected a refrigerator with freezer at the down. Whose idea is better and why?

Q9. Can you explain to your younger brother or sister why kites and eagles fly without flapping their wings?

Q10. Why are the vans carrying milk painted in white or silver?​

Answer 1

Answer:

Hfhdyr is a great place to work with and enjoy the

Answer 2

Answer:

1. this is so because when the temperature is measured the mercury comes down quickly and we are not able to measure the temperature . In digital thermometer the final temperature remains the same until we press the button