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Hurricanes
Hurricanes are large, swirling storms. They produce winds of 119 kilometers per hour (74 mph) or higher. That’s...
HOTS | Pollution & Plastics | Why should we not throw plastic bottles into the river?
Water pollution (or aquatic pollution) is the contamination of water bodies, usually as a result of human activities, so that it...
HOTS | Sound | Explosion on Moon -Will it be seen or heard on the earth instantly or after some time
Will it be seen or heard on the earth instantly or after some time ? For more such...
HOTS | Respiration In Organisms | Heart Beats Faster During Exercise Or while Running
Respiration In Organisms – Heart Beats Faster During Exercise Or while Running Q. WHEN YOU RUN, YOUR BREATHING...
HOTS | What do burning Wool and Cotton smell like?
Burning Cotton smells like Burning Paper, whereas burning wool smells like burning hair. Why? Ans. Cotton and paper,...
Taj Mahal turning Yellow – Marble Cancer
The most common culprit for Taj Mahal turning Yellow is iron, which when exposed to water, acids or...
Why do Racing Cars have Flat Tyres?
Have you ever wondered, why the racing cars have flat tyres ? Why are their tyres unique and...
Physical Vs Chemical Changes | Yellowing of Leaves
We often see changes around us and get confused about the change being a Physical or a Chemical...
Why does a Candle Flame point upwards | Combustion & Flame | HOTS |
Think of the candle flame as a #helium-filled balloon: No matter which way you hold the string or...
Why is Time always on X-Axis in a Graph | Time & Motion | HOTS | Class 8
In physics, different quantities are often represented on graphs and very commonly time is represented on the horizontal...
LPG has no smell of its own | LPG is an odourless gas| Fuels | Coal & Petroleum | HOTS
If LPG is an odourless gas, then how do we detect a gas #leakage? Ans. This is not...
2 Thin Woolen Sweaters are warmer than 1 thick one |Heat| Fibre to Fabric
Come winters and all of us like to wrap ourselves with colorful Woolen Sweaters…and as the temperature dips...
Earth vs Venus | HOTS | Class 8 | The Universe
Earth vs Venus – while they are two planets in our solar system, the former is the third...
Why do hanging hoardings and banners have holes? | Winds, Storms & Cyclones | HOTS
You may have seen holes made in huge hoardings and banners. Why are these necessary? Let’s find it...