What Causes Head Lice?
An infestation of head lice most often affects children and usually results from the direct transfer of...
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Lunar Eclipse – Why Does The Moon Turn Red?
unlight or white light is a mixture of visible colors. Now, when the sunlight falls on...
Taste Buds – Why Mint Tastes Cold?
Our tongue is actually a muscle which consists of many taste buds or receptors. Are they...
Resonance – How Does Sound Break Glass?
Every object when struck vibrates at its natural frequency. If we make sound having a frequency...
Why Is Equator Hot But Poles Are Cold? + More Videos
Firstly, around the equator, sunrays hit the ground at a 90-degree angle. Hence, more solar energy...
Surface Tension – Why Are Drops Spherical?
Surface tension is the property of liquids by which surface molecules of a liquid try to...
Water Purification – Why Is Alum Added To Water?
Alum is aluminium sulfate. It acts as a coagulant. A coagulant attracts and binds with extremely...
What If We Swallow A Fruit Seed?
Swallowing a date seed doesn’t cause any problem as it will pass undigested in stool…
Why Is Ocean Water Salty? + More Videos
Several natural processes make ocean water salty. For example, when it rains, the water droplets react...
Convex Lens – Can A Magnifying Glass Burn Paper?
A convex lens is thicker in the middle and thinner at the edges. Like a fish?...
Hot Shower Vs Cold Shower, Which Is Better? + More Videos
Firstly, as we are warm-blooded, the sudden sensation of cold water awakens our body, thus making...
Gravity – Why Are Planets Spherical?
Planets are round because of the force of gravity. Gravity acts as if it originates from...
Why Can We See Our Breath In The Cold?
Our lungs help us to exchange gases. They are always moist and warm. Now when we...
Why Are Sunsets Red?
It is basically because of scattering of light in the atmosphere. Our atmosphere is primarily composed...
Wavelength – Why Red Is Used As A Danger Signal?
The major reason for red to be used as a danger signal is its wavelength. I...
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