A Long Age of Dinosaurs: teacher key

Dinosaurs, grade 3 edition, written for 3rd grade. Dinosaurs came in many sizes and shapes, and birds are dinosaurs that are alive today. Meet a huge plant-eater, hunters, a fish-eater and the ones with feathers.

Read the book. Print this page for the key.

Questions and answers

1. What did Spinosaurus eat?
   • Fish (answer)
   • Leaves
   • Birds
2. How many sharp teeth did Tyrannosaurus have?
   • About 6
   • About 60 (answer)
   • About 600
3. What does narrow mean in this book?
   • Not wide (answer)
   • Very long
   • Very old
4. What hit Earth about 66 million years ago?
   • A giant asteroid (answer)
   • A huge whale
   • A flying bird
5. What does asteroid mean in this book?
   • A space rock (answer)
   • A kind of tooth
   • A sea animal
6. A Triceratops had three horns. How many horns did two Triceratops have?
   • Three
   • Nine
   • Six (answer)

Words

• asteroid: space rock
• huge: very big
• narrow: not wide