Vinegar + Sampoo + baking soda experiment do at home simple experiment at home #e_bull_jet #shorts

A scientist has a house just beside a busy highway. He collects leaves from some plants growing in his garden to do radio-carbon dating ( to estimate the age of the plant by estimating the amount of a radioisotope of carbon in its tissues ). Surprisingly the radio-carbon dating shows that the plant is a few thousand years old. (a) Was the result of the radio-carbon dating wrong or can you propose a reason for such an observation ? (b) What simple experiment can be done to test the reason that you have proposed ?

A child from a disorganized home will experience the greatest difficulty with:

(a) For the perparation of cakes, baking powder is used. If at home your mother uses backing soda instead of backing powder, how will it affect the taste of the cake and why ? (b) How is baking soda converted into baking powder? (c) What makes the cake soft and spongy ?

Mohini, a resident of Chandigarh went to Shimla with her parents. There she same plant that they have in their backyard, at home. However, she observed that while the plants in their backyard bore white flowers, those in Shimla had pink flowers. She brought home some seeds of the plant from Shimla and planted them in Chandigarh. Upon performing self breeding for several generation she found that the plant from Shimla produced only white flowers. (a) According to you what might be the reason for his observation-genetic or eavironmental factors ? (b) Suggest a simple experiment to determine whether this variation is genetic in nature (c) Suggest another experiment to check whether this variation in flower color is due to environmental factors

While doing an experiment with potentiometer (figure) it was found that the deflection is one sided and (i) the deflection decreased while moving from one and A of the wire, to the end R, (ii) the deflection increased, while the jockey was moved towards the end D. (i). Which terminal positive or negative of the cell E_(1) is connected at X in case (i) and how is E_(1) , related to E? (ii). Which terminal of the cell E_(1) is connected at X in case (1 in 1)?