Science

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Across
  1. 2. A ________ reflects light and allows images to be seen
  2. 4. The bending of light as it moves through different materials is called ______________
  3. 7. ______________ protects metal by coating it with zinc to prevent rust
  4. 9. ________ is the branch of physics and studies light and vision
  5. 11. __________ allows humans to see and is essential in optical engineering
Down
  1. 1. __________ weakens cars, pipes and bridges by slowly breaking down metal
  2. 3. The ______________ system includes the lungs and helps the body breathe
  3. 5. Inhaling toxins through __________ can harm the lungs overtime
  4. 6. Chemicals from vaping can cause long term ___________ to lung tissue
  5. 8. ___________ occurs when metal reacts with oxygen and begins to rust
  6. 10. Cars, pipes, and bridges are often made from ________ because they are strong and durable