Dinosaur History and Fossil Understanding

Jessi and Dino explore the fascinating world of dinosaurs, discussing their diets and the different periods they lived in. They explain that dinosaurs lived in three main periods: Triassic, Jurassic, and Cretaceous. Using a body model, they illustrate the vast timeline of dinosaur existence. The video also covers how fossils provide clues about the past, helping us understand which dinosaurs lived when. The importance of fossil depth in determining age is highlighted, making it clear that not all dinosaurs coexisted.

Which dinosaurs were mentioned as plant-eaters?

• Allosaurus and T. Rex

• Velociraptor and Spinosaurus

• Brachiosaurus and Carnotaurus

• Stegosaurus and Triceratops

Why couldn't Stegosaurus and Triceratops have been friends?

• They had different diets.

• They lived in different time periods.

• They were different sizes.

• They lived in different habitats.

What is the first period of dinosaur history called?

• Paleozoic

• Triassic

• Cretaceous

• Jurassic

During which period did Allosaurus and Stegosaurus live?

• Cretaceous

• Jurassic

• Permian

• Triassic

How long did the Cretaceous period last?

• 25 million years

• 100 million years

• 74 million years

• 50 million years

What part of the body model represents the time of the dinosaurs?

• From the hips to the chest

• From the knees to the hips

• From the chest to the head

• From the feet to the knees

How long have humans and their ancestors been on Earth?

• 65 million years

• 6 million years

• 245 million years

• 100 million years

What do fossils help scientists understand?

• The diet of modern animals

• The movement of tectonic plates

• The climate of the future

• The history of life on Earth

How can scientists determine the age of fossils?

• By their location

• By their depth in the ground

• By their size

• By their color

What analogy is used to explain how fossils are buried over time?

• A stack of books

• A recycling bin

• A layered cake

• A pile of leaves