Inventions that saves lives

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Across
  1. 5. ___________ would kill millions if vaccines don't exist.
  2. 6. Rushes sick or injured people to hospitals quickly.
  3. 8. Lets doctors see ________the body to find broken bones or sickness.
Down
  1. 1. Warns people early when smoke or fire is present.
  2. 2. Keeps passengers safe by holding them in place during a crash.
  3. 3. Protects the brain.
  4. 4. People would ________ without life jackets.
  5. 7. Where Emergency Numbers were first used.