Sentence Jumbles

HOW TO PLAY:

  • Type the jumbled words in the correct order.
  • Click the button at the bottom to check your answers.
  • Press the "refresh" button on your browser to play again.

The 10 sentences
1. that frozen deadly Something ground under diseases . contains


2. millennia . trapped have Ancient microbes been for


3. of that Earth . large permafrost areas The covers


4. The melting change . is permafrost climate of because


5. biological The Earth's in trapped permafrost . dangers


6. humans . said these could harmful He to be


7. million years up to a old . viruses Ancient


8. They and are encountered unknown them . we've never


9. A is melting from methane . danger bigger permafrost


10. is more times It CO2 . 80 than harmful

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