Why was a T-rex's head full of holes?
Because it's head was so big the holes reduced the weight and made the head lighter.
What does a Brontosaurus look like?
Long neck and tail (20 metres long), walks on 4 legs, small head, herbivore
Name the smallest dinosaur.
Microraptor
What was the biggest dinosaur?
Giganotosaurus (bones discovered Argentina in 1990's)
How many fingers did a T-rex have on one arm?
2