Science Grid Masters

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Across
  1. 3. Green pigment that traps sunlight for food production. Biology
  2. 6. Force that opposes the movement of one surface over another. Physics
  3. 9. An object that attracts iron, nickel, and cobalt. Physics
  4. 10. Invisible force that keeps planets in orbit and objects on the ground. Physics
  5. 13. Blanket of gases surrounding Earth. Earth Science
  6. 15. Sudden shaking of Earth's crust caused by movement of tectonic plates. Earth Science
  7. 16. The smallest structural and functional unit of life. Biology
  8. 18. Cell organelle that controls all activities of the cell. Biology
  9. 19. Mass present in a given volume of a substance. Physics/Chemistry
  10. 22. Community of living organisms interacting with their environment. Environment
  11. 23. A homogeneous mixture of a solute and a solvent. Chemistry
  12. 24. Negatively charged particle found outside the nucleus. Chemistry
  13. 25. Process by which a liquid changes into a gas below its boiling point. Chemistry
  14. 28. Large-scale cutting down of forests. Environment
  15. 29. Chemical reaction between an acid and a base producing salt and water. Chemistry
Down
  1. 1. Process through which living organisms release energy from food. Biology
  2. 2. Smallest particle of a substance that can exist independently. Chemistry
  3. 3. A complete path through which electric current flows. Physics
  4. 4. Animal that feeds only on plants. Biology
  5. 5. Variety of different living organisms in an area. Environment
  6. 7. Organism that breaks down dead plants and animals. Biology
  7. 8. Molten rock found beneath Earth's surface. Earth Science
  8. 11. Speed measured together with its direction. Physics
  9. 12. Instrument used to detect and record earthquakes.
  10. 14. Converting waste materials into useful products. Environment
  11. 17. Substance formed when two or more elements combine chemically. Chemistry
  12. 20. A pure substance consisting of only one type of atom. Chemistry
  13. 21. Material that does not allow electricity to pass through easily. Physics
  14. 26. Bouncing back of light after striking a surface. Physics
  15. 27. Process by which green plants prepare their own food. Biology