This printable crossword puzzle on the topic of Ecology & Evolution has 10 clues. Answers range from 6 to 10 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
A word which means no longer in existance
The name for the period of time dinosaurs were on earth
Another word for varied/different
Scientists have many ? about how the dinosaurs vanished
Without water, this is what would happen to plants
Many scientists think an ? hit the earth and killed all the dinosaurs
A word which means to destroy all traces of something
The biggest kind of dinosaurs - begins with S
Some scientists think it was a ? eruption that killed the dinosaurs
T-Rex ate other ...?