Resources found in the game include: energy, metal, rare materials, and oil.

Common building materials that are poor insulators include glass and metal.

The resources of the Moon include metals and oxygen-bearing rock.

All of her other pieces had included hard metal like iron, brass, and bronze.

Reducing agents used for this purpose include carbon or other metals.

Other materials include cast light metal, and composites including plastic.

Some of these materials include ceramics, paper, metals, and plastics.

Some of the media worked in include pottery, leathercraft, metal, and wood.

Throughout the early 1900s helmets developed to include metal and plastics to better protect the player.

These included such metals as lead, cadmium, copper and mercury.