Science 3: Jurassic Period

Today we'll learn about how Jurassic Park lied to us about the T-rex. We'll never trust dinosaur movies again.

3rd GradeLanguage Arts
Elementary and Middle School3rd Grade
LanguageEnglish Language

Transcript

00:24

Well, never fear, Triassic and Cretaceous periods!

00:27

We still love you!

00:28

So the Triassic period started in…

00:30

…Oh, what?

00:31

…This video is supposed to be about the Jurassic Period…?

00:34

….Well…this is awkward.

00:35

Sorry, guys…maybe one day, you'll get a video…. [Dinosaur walking away]

00:38

The Jurassic Period began about two hundred and one million years ago, and lasted until [Coop pointing at a blackboard]

00:42

about one hundred and forty-five million year ago, so it's pretty darn old and went on for

00:47

a pretty darn long time.

00:50

Just like the grizzled old professors that like to talk about it. [Professor with grey beard and walking stick]

00:53

They're probably eye witness accounts.

00:55

The Earth had calmed down a lot in the Jurassic Period.

00:58

It was moist, stable, and warm, and its air was no longer poisonous.

01:02

Always a plus.

01:03

Basically, it was finally out of its hormonal teenage years. [The Earth with long side swept hair and sunglasses]

01:07

And that whole, "no longer poisonous" thing was a big plus, especially for all the creatures

01:11

that lived back then.

01:12

Instead of poison, the air was filled with life-supporting oxygen.

01:16

Which…y'know, is always a good thing.

01:19

And of course, there was also plenty of water to support life on land, at sea, and in rivers [Rainbow over a river]

01:23

and lakes.

01:24

Sounds pretty nice, huh?

01:26

And since there was all this great water, sun, and air, the Earth was covered in lush [Land covered in plants]

01:30

vegetation.

01:31

And this vegetation proved to be great food for many herbivores, including many dinosaurs

01:35

and early small mammals.

01:37

These herbivores thrived off of the large amounts of vegetation.

01:40

And you know what happens when herbivores thrive? [Rabbit next to a carrot]

01:42

Carnivores thrive, too.

01:44

Because a carnivores favorite meal is, well, a herbivore. [The dinosaur eats the bunny]

01:48

We hear it was the top selling item in Jurassic McDonald's. [McDonald's made of straw]

01:51

Some of the most well-known animals that lived during the Jurassic Period include...

01:55

the Archaeopteryx...

01:57

Allosaurus...

01:58

Brachiosaurus... [Pictures of the animals]

02:00

Ichthyosaurus...

02:02

Plesiosaurus...

02:03

Large dragonflies...

02:05

Crocodiles...

02:07

and the Anklyosaurus. [Dinosaur with human ankles stuck to it's back]

02:08

Which as literally all ankles.

02:10

Just kidding.

02:11

They actually looked like this.

02:13

And these are just a few of over 800 different types of fossils of ancient Dinosaurs that

02:18

scientists have discovered from this period.

02:20

And no, before you ask, your Great Aunt Margaret is not one of them. [Angry looking aunt]

02:24

Though…that is a pretty funny joke.

02:26

High five. [Boy is high-fived through a window]