In summer, ice is kept wrapped in a gunny bag. Explain the reason.
Explain why the water pipes are covered with cotton during very cold weather.
Why are quilts filled with fluffy cotton ?
Why is an oven made of double walls with the space in between filled with cork ?
Why do we prefer to wear white or light coloured clothes in summer and black or dark coloured clothes in winter ?
Fill in the blank
Still air is an .............of heat.
Why do we use cooking utensils made up of copper.
Why is a tea kettle provided with an ebonite handle ?