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15 Amazing Science Facts

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Rahul Kumar
15 Amazing Science Facts

15 Amazing Science Facts

1. Why Mercury is used in the Thermometer?

The mercury is sensitive to heat and bright and not cling in the vessel wall, so mercury is used in thermometers.

2. Why the water kept in the pitcher remains cool during summer?

Jug or pitcher is made in such a way that there are many fine holes. In these holes, water is getting vaporized by coming in contact with the outer atmosphere of air due to this evaporation pitcher water remains cold.

3. Why The lightning flashes are seen before and heard after?

Since The speed of light is much higher than the velocity of sound, when lightning strikes, the brightness is seen earlier as the light velocity is higher and it is heard later because of the decrease in the velocity of sound.

4. Why clothes dry quickly in summer?

Wet clothes dry quickly due to rapid evaporation in summer.

5. Why does gas bubbles come out when the mouth of the sodawater bottle open?

Carbon dioxide is added to the soda water at high pressure and packed in a bottle and when the mouth of the bottle is opened, the pressure is reduced and carbon dioxide Bubbles start coming out.

6. Why argon gas is filled inside the electric bulb?

When the bulb is illuminated when ignited, the filament in the bulb is destroyed by oxygen from the air inside the bulb, but when argon is filled with it, which is an inert gas, it does not attach to the bulb’s filament. And the bulb keeps on burning because of the fact that argon gas is filled in the light bulb.

7. Why ordinary salt turns blue on rainy days?

Magnesium chloride is added as an impurity in ordinary salts, which has the ability to absorb moisture, due to the humid weather during rainy days, magnesium chloride absorbs moisture, which turns ordinary salts blue.

8. Why the colour of the leaf is green?

The pigment of green colour i.e chlorophyll is found in the leaf, due to which, the colour of the leaf is green

9. Why is it harmful to sleep under a tree at night time?

In the absence of sunlight at night, plants do not act in photosynthesis, which does not release oxygen, which frees carbon dioxide which is harmful to humans.

10. Why do stars twinkle?

Due to being situated at an infinite distance from the earth, the light waves emanating from the stars go through many mediums before reaching the earth and some waves are also absorbed, so the stars flicker.

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