Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne Cause of death of dinosaurs
Name: Jesse
Status: Other
Age: N/A
Location: N/A
Country: N/A
Date: N/A 


Question:
How, exactly, did dinosaurs die?



Replies:
Our current thinking is that dinosaurs passed away due to the following sequence of events:

A large asteroid from space crashing to the earth, producing a large amount of debris in the atmosphere.

The high amount of debris created dirty "clouds" which blocked out the sunlight and reduced the amount of sunlight reaching the earth.

Because of the reduced sunlight, plants began to die off. These plants included those which served as the dinosaurs food. The dinosaurs also began to die off due to the lack of food.

Over time scientists have had several theories regarding the disappearance of dinosaurs. As I mentioned this is the current idea.

Rickru



Click here to return to the Environmental Science

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (help@newton.dep.anl.gov), or at Argonne's Educational Programs

NEWTON AND ASK A SCIENTIST
Educational Programs
Building 360
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: June 2012
Weclome To Newton

Argonne National Laboratory