Question

describe how to make the following models with the help of objects found around you 1) sand clock model 2) stethoscope model​

Answer 1

Explanation:

sand clock - take two plastic bottles and cut them into two parts .

make whole in caps and join the two caps with the upper parts of the bottle

and place cardboard in bottom of your sand clock

fill the sand from the upper part and than place cardboard on the upper part also

your sandclock is ready