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 | R | U | S | T | N | E | L | L | E | E | P | Z | L | C |
| E | I | T | B | D | P | O | A | A | G | R | E | C | I | Y |
| E | L | T | N | A | M | D | I | R | N | U | N | Y | P | L |
| P | Z | B | E | T | Q | V | R | E | I | T | O | C | D | A |
| F | M | C | A | N | X | D | E | N | L | A | I | L | C | M |
| E | I | J | D | W | G | U | T | I | C | R | T | E | G | R |
| U | T | G | Y | W | E | A | A | M | Y | E | C | A | Z | E |
| B | V | Z | F | Z | Q | N | M | J | C | P | E | V | R | H |
| H | R | Z | D | X | J | X | E | O | E | M | V | S | K | T |
| N | O | I | T | A | I | D | A | R | R | E | N | L | L | M |
| I | J | S | I | K | L | V | R | E | N | T | O | E | I | P |
| E | A | N | O | I | T | C | U | D | N | O | C | O | R | E |
| A | W | Z | O | Y | L | A | R | U | T | A | N | E | G | L |
| M | X | F | M | M | U | E | L | O | R | T | E | P | L | F |
| Z | G | Y | Q | V | E | C | R | U | O | S | E | R | T | E |
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