Science Quest

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Across
  1. 3. Animals that nurse their young with milk
  2. 5. Community of living and non-living things in a habitat
  3. 7. Planet closest to the Sun
  4. 9. Force per unit area acting perpendicular to a surface
  5. 10. Substance used to stimulate immunity against infectious diseases
Down
  1. 1. A form of energy
  2. 2. Essential nutrient for growth and tissue repair
  3. 4. Sour fruit that contains acid
  4. 6. Helps doctors listen to a patient’s heartbeat
  5. 8. Force that pulls objects toward Earth’s center and makes them fall back down