Earth Science
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CONDUCTION
CONVECTION
CORE
CRUST
CYCLE
ELECTROMAGNETIC
MANTLE
MATERIAL
MINERAL
NATURAL
NONRENEWABLE
ORE
PETROLEUM
RADIATION
RECYCLING
RESOURCE
TEMPERATURE
THERMAL
| C | X | M | U | E | L | O | R | T | E | P | J | M | X | E |
| L | R | E | S | O | U | R | C | E | M | L | Y | M | L | S |
| W | Y | D | Q | J | Q | E | I | T | H | A | N | E | Q | E |
| O | V | N | O | I | T | C | U | D | N | O | C | G | Y | E |
| E | R | U | T | A | R | E | P | M | E | T | N | O | S | D |
| N | G | N | I | L | C | Y | C | E | R | H | O | Q | R | G |
| O | U | M | U | X | X | L | O | O | Q | E | I | E | Z | E |
| I | L | A | R | E | N | I | M | R | K | R | T | L | Z | A |
| T | P | F | A | O | J | A | M | E | O | M | A | C | W | U |
| C | R | U | S | T | G | C | M | W | O | A | I | Y | W | K |
| E | E | G | C | N | A | T | U | R | A | L | D | C | L | H |
| V | H | Y | E | E | Y | V | E | E | G | N | A | V | U | H |
| N | U | T | E | L | B | A | W | E | N | E | R | N | O | N |
| O | I | X | O | M | R | Z | V | L | A | L | R | U | A | O |
| C | T | L | A | I | R | E | T | A | M | A | N | T | L | E |
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