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Measuring atmospheric pressure with a rubber sucker
The force needed to pull the sucker away from a smooth surface can be found by using a spring balance. The area on which the atmospheric pressure is acting can be calculated by pressing the sucker on a piece of squared paper.
Use a sucker which has a hook attached. If one is not available, tie some copper wire round the neck and shape a loop.
Greenhouse effect: Scientists have reason to believe that air pollution. both due to carbon particles or soot and carbon dioxide would affect weather. A rise in surface temper
Explain the term - hydrolysis yield ammonium ion In addition to ammonium compounds, materials such as urea which, upon hydrolysis yield ammonium ion, are again a potential sour
Making a precision reflecting telescope It is fairly beyond the scope of this book to include the intricate details for mirror grinding and testing. Though, some teachers may w
To study a hailstone When it hails, collect some of the hailstones. Cut them in half and view how the ice of the hailstone has been built up in layers. If you live in a region
Question 1 Is it ethical to use Placebo in Clinical trial? What is your opinion and what do CIOMS and ICH guidelines say in this regard? Question 2 What is the role of ethics
Observe the surface of the moon :- Use the small telescope or a pair of field glasses. Examine the surface of the moon and see if you can see any of its craters and mountains.
Hazard Identification : Each United Nations hazard class (with the exception of class 9) has a distinctive diamond shaped label bearing a pictogram for quick hazard recognition. F
all of these are examples of fossil fuel EXCEPT:coal,petroleum,corn oil or natural gas?
What a molecule is, and the difference between molecules and compounds? A molecule is made up of two or more atoms combined chemically. The atoms can be of the same element, as
Explain the Gonadotropic Hormones (GTH): There are two gonadotropic hormones which regulate gonadal functions. They are follicle stimulating hormone (FSH) and luteinizing hormo
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