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MYSTERIOUS EXTINCTION

Teacher: Mr. Prussman
Horizontales
Another plausible explanation of the mysterious extinction of dinosaurs is that thousands of _________ erupted. (149)
A scientist that studies _______is a Paleontologist.
The impact of the asteroid would have caused changes in the earth's _________. (150)
Dinosaurs on earth are classified as _______. (87)
An element that is found in many rocks from outer space is ________. (149)
Tiny bits of glass called________ are produced when large objects from space crash into the earth. (149)
The animals such as the dinosaurs that could not_____ to the global cooling would die and become extinct. (150)
Verticales
A group of more advanced reptiles that exist on the earth today are _________. (87)
An impact by a 10 mile wide _______ may explain the killing off of 90% of Earth's species 65 million years ago.
Any species that no longer exists today is called________. (319)