Your cart is empty
Domesticated animals and crops originate from various parts of the world.
A hot-air balloon is a balloon aircraft which is lifted by hot air.
Regular dice can be used for solving statistical and probability exercises.
To calculate the volume of a tetrahedron we start by calculating the volume of a prism.
Division of space by three intersecting planes in several different arrangements.
The United States entered World War II after the devastating attack by the Japanese navy.
The Crow are Native Americans who inhabited the Yellowstone River valley.
A periodic climate pattern that occurs across the tropical Pacific Ocean every five years.
The bell is a percussion instrument and an idiophone. Many types of bells exist.
Cold and warm fronts are formed where bodies of cold and warm air meet.
Cyclones are large areas of circulating air with clouds and precipitation being formed in its centre.
The piano is one of the most popular instruments in the world. It is a chordophone which produces sounds mechanically.
A string quartet consists of four string players, it appeared in the late 18th century.
The river and marine sailing boats of ancient Egypt were one-masted, oared boats
The head of the Byzantine Empire, the direct continuation of the Roman Empire, was the emperor.
The Aztec Empire was a despotic, militaristic state ruled by the tlatoani.
The most important weapons of medieval Arab warriors were the bow and the sword.
The Incas´ rudimentary weapons were inadequate in their struggle against the Spanish Conquistadors.
The masterpieces of ancient Greek potters are important archaeological artefacts.