• In the white boxes below, type the words you hear. You will hear each word twice.
       (Remember to use the correct spelling and capital letters, etc.).
  • Click the button at the bottom to check your answers.
  • Press the "refresh" button on your browser to play again.

1. devised a way to make it
2. a whole of other building materials
3. The has come from researchers
4. different ways to the chemicals
5. applications that can replace glass
6. some materials
7. A called lignin
8. which made the wood
9. better at against the cold
10. it is
11. research is still in its
12. the process on a much larger scale

Back to the transparent wood lesson.

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