More cards in this set

Card 16

Front

WHAT IS AN ORE

Back

Preview of the front of card 16

Card 17

Front

OXIDATION IS..

Back

Preview of the front of card 17

Card 18

Front

WHAT IS AN ALLOY

Back

Preview of the front of card 18

Card 19

Front

WHAT TWO ELEMENTS IS IN CRUDE OIL

Back

Preview of the front of card 19