Where does metal come from?

What is an "ore"?

• A type of shiny, pure metal found in rivers.

• A special rock that contains metal.

• A tool used for digging in mines.

• A liquid form of metal.

How is most metal found in the Earth?

• As pure, shiny chunks in rivers.

• Hidden inside special rocks called ore.

• Mixed with dirt and sand.

• Floating in underground lakes.

Why can't a regular kitchen oven be used to extract metal from ore?

• Kitchen ovens are too small.

• Kitchen ovens do not get hot enough.

• Kitchen ovens are not designed for rocks.

• Kitchen ovens would make the metal explode.

What process is used to separate most metals from their ore?

• Washing the ore with water.

• Breaking the ore into smaller pieces.

• Heating the ore to very high temperatures.

• Mixing the ore with other chemicals.