character: Dr. Mia Chen
topic: Astrobiology and Martian soil samples
grade: 6
subject: Science
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character: Dr. Alan Foster
topic: Mars exploration missions
grade: 6
subject: Science
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character: Dr. Lisa Reyes
topic: The importance of soil composition in astrobiology
grade: 6
subject: Science
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character: Professor Mark Johnson
topic: Techniques for analyzing extraterrestrial soil
grade: 6
subject: Science
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