Describe how to make the following models with the help of objects found around you.
1) Sandclock model
Answers
Answer:
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
Explanation:
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Answer
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.
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.