Floating a needle on water, Science

Assignment Help:

Floating a needle on water

Thoroughly dry a steel needle. Place it on the tines of a dinner fork and gently smash the surface of the water in a dish with the fork. If you are careful the needle will float as you take the fork away. Look at the water surface closely. Can you see how the surface film seems to curve under the weight of the needle ?

 

 


Related Discussions:- Floating a needle on water

Soil Science, A soil with a large buffering capacity can be expected to hav...

A soil with a large buffering capacity can be expected to have: A. A tremendous amount of iron oxides B. Little ability to retain basic cations C. A high ability to retain cation

Experiment of a weather picture, A weather picture A piece of white blo...

A weather picture A piece of white blotting paper is immersed in a solution having two parts cobalt chloride to one part common salt. While wet the paper will stay pink, but wh

Water-mill in golden era, Water-mill in Golden era: The water-mills wer...

Water-mill in Golden era: The water-mills were also invented in  the classical period. But they came to be widely used only in  the Middle Ages. The wind-mills and water-mills

Explain the microscopical examination of urine, Explain the Microscopical e...

Explain the Microscopical examination of Urine By microscopical examination, the pus cells, RBC and cast cells are found if the infection is present. Microscopical examination

.metals, Disadvantages of cold working metals (point form pliz)

Disadvantages of cold working metals (point form pliz)

Illustrating an eclipse of the sun, Illustrating an eclipse of the sun ...

Illustrating an eclipse of the sun Hold a small coin a few inches from one eye and close the other eye while looking at the lighted electric bulb on the ceiling of a room. The

Explain a lift pump, A lift pump To change the syringe and make a simpl...

A lift pump To change the syringe and make a simple lift pump, burn two holes by the piston with a hot wire and fit a thin piece of leather or rubber above them to act as a val

The mop weighs less, The mop weighs less Put a floor mop in water. Wrin...

The mop weighs less Put a floor mop in water. Wring it out and then balance it on a triangular file placed on the corner of a table. Be sure you have it carefully balanced. Loo

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd