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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...
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...
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...
Why Are Chips Packets Filled With Nitrogen?
Nitrogen gas is used for packing the packets of chips because it is an inert gas, and it prevents...
Egg in Vinegar Experiment | What Happens If You Put A Raw Egg in Vinegar?
A well-known chemistry experiment is done by placing an egg (raw or boiled) into a container filled with...
Which of the following states of matter is the most abundant state of matter in the universe?
States of matter are generally described on the basis of qualities that can be seen or felt. Matter...
Floating Drawings! – Whiteboard Marker Fun Experiment
In this activity, you will make your drawings move around by letting it float on water. What makes...
Magic Milk Experiment
Soap molecules consist of a hydrophilic (“water-loving”) end and a hydrophobic (“water-fearing”) end. Water molecules are polar molecules...
Contraction and Expansion of Air by Experihub Student
When we heat air, the kinetic energy of these molecules increase and they begin to move farther apart...
ExperiHub’s Session on Sublimation at School Vidya
At normal pressures, most chemical compounds and elements possess three different states at different temperatures. In these cases, the transition from the solid to...
The Elephant Toothpaste
Elephant toothpaste is a foamy substance caused by the rapid decomposition of hydrogen peroxide using potassium iodide or...