The balance of nature is not a status quo; it is fluid, ever shifting, in a constant state of adjustment
RACHEL CARSON
PASCAL’S LAW
BERNOULLI’S LAW
BOYLE’S LAW
HENRY’S LAW
EVAPORATION
Do you know that EVAPORATION is a very important process occuring all the time around us?.
First of all, you should know the difference between Evaporation and Vapourization. Both the processes mean conversion of matter from liquid to gaseous state, but the key difference is the Temperature. While Vapourization occurs only at the Boiling Point, the Evaporation occurs at temperatures below the Boiling Point. Obviously therefore, EVAPORATION is far more frequent and abundant than Vapourization. Read here.
For Learners:
DIYHA (do it yourself home activity):
1. Practical 1 (Insolation): Understand how Click here
2. Practical 2
FLAME
What is a flame? A ball of fire? A flame has always challenged the scientists with its intriguing properties.
Here are some of its basic properties.
For Learners:
DIYHA (do it yourself home activity):
1. Practical 1 (Insolation): Understand how Click here
2. Practical 2
EVER ADJUSTING STATES OF WATER
PASCAL'S LAW APPLICATIONS
WATER DRINKING DUCKS
PASCAL'S LAW APPLICATIONS
LEADING ARTICLES
Dancing Flames
Here is an interesting article by NASA on the floating flames.
QUIZ
Each of the following questions has four answer options: a, b, c, d. Choose the correct one.
1. If you are situated at Tropic of Cancer then you can never ever have your shadow pointing in this direction:
(a) North.
(b) East.
(c) South.
(d) West.
2. Consider the factors causing change of seasons on earth:
(i) Distance from the sun.
(ii) Rotation of earth around sun.
(iii) Precision of earth’s axis.
(iv) Tilt of earth’s axis.
Which of the following are the main factors responsible for change of seasons on earth?
(a) (i) and (ii)
(b) (i) and (iv)
(c) (ii) and (iii)
(d) (ii) and (iv)