OCR Unit 4-Story 4: Why Did the Dinosaurs Disappear?
The wind blew too hard for them.
It became too warm for them.
No one knows for sure.
An earthquake
Iridium
A crater
There were huge earthquakes
There was a McDonalds on the corner
There were people on earth
A volcano erupted blocking out the sun.
There was a space invasion.
A meteorite hit earth and added soot to the air.
A giant dinosaur ate them and is now hiding.
Some kinds of plants died, too
No other living things were around
The climate didn't change at all
Soot
Clay
Iridium
Not enough air
Not enough water
Not enough food
Weather
Storms
Plant life
A rain storm
An explosion
An extinct animal
Cold
Wetness
Smoothness
A tool that scientists use
A place where dinosaurs lived
Something new that has been found