Soap is mainly composed of surfactant molecules. These are special molecules with a hydrophilic head (which loves water) and a hydrophobic tail (which repels water...
Ketchup is what is called a non-Newtonian fluid, which simply means it doesn't flow like water or oil. Specifically, its consistency depends on the force...
Beneath the oceans, the Earth's crust is not fixed but divided into immense pieces called tectonic plates. These plates move slowly, sometimes pulling apart and...
Limestone simply comes from the minerals naturally present in the soil, mainly composed of calcium carbonate and sometimes magnesium carbonate. When rainwater passes through the...
Wool is made up of fibers composed mostly of keratin, the same protein found in our hair and nails. These fibers are covered with tiny...
Some volcanoes have a magma chamber directly connected to the surface. When the magma rises, it can form permanent pools, called lava lakes, directly visible...
The local climate plays a key role in ensuring that certain mountains remain snow-covered year-round. For example, near coastal regions, the significant humidity from the...
The Earth moves through space with a slightly tilted axis (about 23.5 degrees relative to its orbit). This detail is not trivial; it is even...
Hawaiian lavas are primarily composed of basalt, a volcanic rock rich in iron and magnesium, but very low in silica. The key point is this...
In a vacuum jar, a large part of the air inside was removed just before sealing it. Air is made up of many small molecules...
