The Norwegian adventurer Thor Heyerdahl first came in contact with the inhabitants and history of Oceania during his voluntary exile.
Take a walk in the most popular national park in the US.
There are various plans for eliminating brownfield sites in cities, but there are negative examples of the process as well.
Examining the colour of cobalt(II) chloride in water and hydrochloric acid.
In winter months when it is cold enough the surface of even fast-flowing rivers can freeze.
Separating mixtures if one of the substances dissolves in water.
Barium hydroxide reacts with ammonium nitrate while absorbing heat from their surroundings.
Horse chestnut trees in parks and on playgrounds are a sight to behold. They are native to southeastern Europe and Southwest Asia.
When two substances are heated, they combine to form a compound.
When heated, powdered sulphur reacts with powdered zinc, releasing heat.
Decomposition of ammonium dichromate by heating.
The halogens and the metals combine to produce bromides.
Ethylene, produced by the heating of polyethylene, changes the colour of bromine water.
The method of separation of substances in a mixture depends on their different properties.
Non-polar substances dissolve in non-polar solvents while polar substances dissolve in polar solvents.
Change in the colour of the cobalt(II) chloride solution due to heating and cooling.
Examining the colour of a piece of copper when exposed to heat and then ethanol vapour.
Have you ever thought about why honey flows so slowly from a spoon compared to water?
A surprising phenomenon occurs when we hold a statically charged ruler near water flowing from a tap.
These astonishingly spectacular rock towers and breathtaking panoramas make the Dolomites unique among all the mountain ranges in Europe.