Pumice – The floating rock
Pumice is a volcanic rock which is made from lava. It is a very light rock material filled with gas...
Pumice is a volcanic rock which is made from lava. It is a very light rock material filled with gas...
Rain is a form of precipitation of water droplets that are greater than 0.5 mm in diameter. The amount of...
The structure of a snowflake is quite complex. It is formed from a frozen drop of cloud, which forms the...
Water evaporates from oceans, seas, rivers, etc., and rises up in the atmosphere. At the height of several thousand kilometres,...
About two billion years ago a meteorite which was about ten kilometres in diameter hit an area near the town...