io

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Across
  1. 3. The path one object takes around another in space.
  2. 9. The scientist who used a telescope to observe Jupiter’s moons.
  3. 10. The astronomer who proposed that the Sun is at the center of the solar system.
  4. 13. Characteristics inherited from parents.
  5. 14. Information that supports a scientific idea.
  6. 16. The scientist who described the laws of motion and gravity.
  7. 17. The desire to ask questions and learn how things work.
  8. 18. The scientist who researched radioactivity.
  9. 19. The scientist who discovered patterns of heredity using pea plants.
Down
  1. 1. Tests used to investigate scientific questions.
  2. 2. Microscopic organisms that can cause illness.
  3. 4. The study of how traits are passed from parents to offspring.
  4. 5. The scientist who showed that bacteria cause disease.
  5. 6. A medical treatment that helps prevent disease.
  6. 7. A tool used to observe distant objects in space.
  7. 8. The study of the natural world through questions and evidence.
  8. 9. The force that pulls objects toward Earth.
  9. 11. Tiny particles that make up matter.
  10. 12. The movement of an object from one place to another.
  11. 15. The ability to do work or cause change.