P4 Science – Shadows

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Across
  1. 4. Light travels in a ______ line.
  2. 7. Materials that allow some light to pass through.
  3. 9. An opaque material.
  4. 10. An opaque material.
Down
  1. 1. Materials that allow most light to pass through.
  2. 2. Materials that allow no light to pass through.
  3. 3. ______ glass allows some light to pass through.
  4. 5. Light can be completely or partially ______.
  5. 6. A transparent material.
  6. 8. Formed when light is blocked.