General Information (U-Z)

Vanadium - Vanadium is a metal element. Its symbol is V.

Volcano - A volcano is a vent in the earth's crust.

Water - Water is a liquid oxide of hydrogen.

Water table - The water table is the level of ground below which the rocks are saturated with water.

Welding - Welding is the process of joining two pieces of metal together by hammering, pressure or fusion.

Wood's Metal - Wood's metal is a fusible alloy consisting of 50 per cent bismuth, 25 percent lead, 12.5 per cent tin and 12.5 per cent cadmium.

Ytterbium - Ytterbium is a metal element with the symbol Yb.

Yttrium - Yttrium is a metal element with the symbol Y.