More cards in this set

Card 6

Front

Why do these metals not need to be extracted?

Back

Preview of the front of card 6

Card 7

Front

What is reduction the gain of?

Back

Preview of the front of card 7

Card 8

Front

What is oxidation the loss of?

Back

Preview of the front of card 8

Card 9

Front

What is a metal ore?

Back

Preview of the front of card 9

Card 10

Front

OILRIG stands for what?

Back

Preview of the front of card 10