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Java Games: Matching, concentration, word search, and flashcards. |
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| A | B |
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| descent | the act of lowering down |
| orbiting | revolving around |
| artificial | made by humans |
| continuously | without stopping |
| physics | the science of dealing with energy and matter |
| catastrophe | disaster |
| lunar | of the moon |
| astronomer | a scientist who studies the universe |
| hospitable | favorable to growth and development |
| radiation | energy that is sent out in waves |
| potential habitat | possible enviroment |
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