Jūsu grozs ir tukšs
Cyclones are large air masses with winds spiralling inwards around a low-pressure centre, and carry clouds and precipitation.
Human activity increases the greenhouse effect and leads to global warming.
The ozone layer filters the Sun's harmful UV radiation, therefore it is indispensable for life on Earth.
The Earth’s magnetic North and South poles are located near the geographic North and South poles.
Stratovolcanoes consist of layers of volcanic ash, debris and lava.
Learning about the geographic location, capitals and flags of the world´s countries through exercises in three levels of difficulty.
Space probes and Mars rovers examine the structure of Mars and possible traces of life.
Major phases in the history of theories and views about the structure of the atom.
Neil Armstrong, one of the crew members of Apollo 11 was the first man to set foot on the Moon.
The steam engine, perfected by the Scottish engineer James Watt, revolutionised technology.
Romas slavenākais un majestātiskākais amfiteātris tika uzbūvēts 1. gadsimtā.
The magnificent bath complex of the Roman Emperor was built in the 3rd century AD.
The French Montgolfier brothers were the first pioneers of flying.
Energy released during nuclear fission can be used for civilian or military purposes.
In benzene there are sigma bonds and delocalised pi bonds between carbon atoms.
Our body's internal support structure to which skeletal muscles are attached.
Skeletal muscles form the active part of the locomotor system: they move the bones they are attached to.
Yuri Gagarin became the first human in space on 12 April 1961.
African villages adapt to the natural environment well and reflect of the culture of local tribes.
This animation demonstrates the most important relief features, surface waters and their relevant symbols.
Nuclear power plants convert the energy released during nuclear fission into electric power.
The heart is the central pump of the cardiovascular system beating several billion times over our lifetime.
The skin is the soft outer covering of our body, its three layers are the epidermis, the dermis and the hypodermis.