Geographical Terms

Description

Open pit mining often results in a large hole or pit being formed in the process of extracting a mineral. Deposits mined by open pit techniques are generally divided into horizontal layers called benches. The thickness of the benches depends on the type of deposit & the mineral being mined. Mining is generally conducted on a number of levels at any one time.

Description

Shows various stages through which the earth was formed

Description

Showing inner, outer material and formation of the Earth.

Description

Illustrating the nine planets which revolve around the Sun. Satellites of the planets are also shown. Mounted on base with 12 zodiac signs