1
An _______ is a metalworking tool consisting of a large block of metal (usually forged or cast steel), with a flattened top surface, upon which another object is struck (or "worked").
Anvil
The _____ ______ (c. 1200 – c. 550 BC) is the final epoch of the three historical Metal Ages, after the Copper Age and Bronze Age. It has also been considered as the final age of the three-age division starting with prehistory (before recorded history) and progressing to protohistory (before written history).
Iron Age
________ are an open type of footwear consisting of a sole held to the wearer's foot by straps that go over the instep and around the ankle. ________ may also feature a heel of varying heights. While the distinction between ________ and other types of footwear can sometimes be unclear, ________ are generally understood to leave most of the foot exposed.
Sandals
A _________ (often called a _____ if on a ship or an air_____ if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working fluid such as water or air.
x2 for both answers
Propeller, Screw
_________ is a landlocked state in the Midwestern region of the United States. Ranking 21st in land area, it borders Iowa to the north, Illinois, Kentucky and Tennessee to the east, Arkansas to the south and Oklahoma, Kansas, and Nebraska to the west.
Missouri