The Mesozoic Era

Question 1

Which list shows the three periods of the Mesozoic Era in the order they occurred, from earliest to most recent?

Accepted Answer

Triassic, Jurassic, Cretaceous

Answer

Cretaceous, Jurassic, Triassic

Answer

Triassic, Cretaceous, Jurassic

Answer

Jurassic, Triassic, Cretaceous

Question 2

Lily learns that the dinosaur Plateosaurus lived during the Triassic period and the dinosaur Triceratops lived during the Cretaceous period. Which statement best explains their relationship?

Accepted Answer

Plateosaurus lived millions of years before Triceratops, so they never lived together.

Answer

Plateosaurus lived after Triceratops because the Triassic period came after the Cretaceous period.

Answer

Plateosaurus and Triceratops were the same kind of dinosaur because they both lived in the Mesozoic Era.

Answer

Plateosaurus and Triceratops lived at the same time because the Triassic and Cretaceous periods were right next to each other.

Question 3

Sam is building a three‑step dinosaur timeline. Step 1 is the oldest era, step 2 is the middle era, and step 3 is the most recent era. He wants to put a dinosaur that lived during the middle era on step 2. Which dinosaur should he choose?

Accepted Answer

Brachiosaurus

Answer

Tyrannosaurus rex

Answer

Triceratops

Answer

Plateosaurus

Try three questions

Which list shows the three periods of the Mesozoic Era in the order they occurred, from earliest to most recent?

Lily learns that the dinosaur Plateosaurus lived during the Triassic period and the dinosaur Triceratops lived during the Cretaceous period. Which statement best explains their relationship?

Sam is building a three‑step dinosaur timeline. Step 1 is the oldest era, step 2 is the middle era, and step 3 is the most recent era. He wants to put a dinosaur that lived during the middle era on step 2. Which dinosaur should he choose?

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