describe how to make the following models with the help of objects found around you 1) sand clock model 2) stethoscope model
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Answer:
1 Sand clock model
Pour the salt or sand into one of the jars. Cut a circular piece of paper that is big enough to fit over the opening of the jar. Punch a hole in the middle of the piece of
sand clock materials:- two small bottles and sand. How to make:- take two bottles with their caps and make a hole in the middle of both the caps paste both the caps firmly with synthetic glue and fill half of a bottle with sand now stick the bottles with their caps and your sand clock is ready.
An hourglass (or sandglass, sand timer, sand clock or egg timer) is a device used to measure the passage of time. It comprises two glass bulbs connected vertically by a narrow neck that allows a regulated flow of a substance (historically sand) from the upper bulb to the lower one.
An hour glass, or a sand clock, is a device that measures the passing of time. It consists of two bulbs that are connected by a narrow segment. The hour glass is used to measure how long it takes for the sand inside to pass from one of the bulbs to the other.
Stethoscope materials:- a pipe a rubber sheet or balloon and a funnel. How to make:- take the funnel and cover it with balloon now fix the pipe with that funnel now your stethoscope is ready.
The stethoscope is a medical device for auscultation, or listening to internal sounds of an animal or human body. It typically has a small disc-shaped resonator that is placed against the skin, and one or two tubes connected to two earpieces.
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