Liz Bazar

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Liz Bazar

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Dinosaurs existed about 228 million years ago, during the Mesozoic era; the Triassic period, Jurassic Period, and Cretaceous period. When did dinosaurs roam the earth? – PowerPoint PPT presentation

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Title: Liz Bazar

1
DINOSAURS

Liz Bazar

2
When did dinosaurs roam the earth?

Dinosaurs existed about 228 million years ago,
during the Mesozoic era the Triassic period,
Jurassic Period, and Cretaceous period.

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3
Who were some key players in the dino-world?

Tyrannosaurus Rexone of the biggest meat eaters
Brachiosaurusone of the tallest
Velociraptorone of the fastest

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4
What may have caused the dinosaurs mass
extinction??

Asteroidmost widely accepted
Volcano
Mass starvation
Various others

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5
What were dinosaur habitats like?

Triassic weather was warm and wet. The plants
that grew were mostly ferns, bushes and giant
pine trees. Dinosaurs were generally small in
size.
Jurassic The land masses began to be separated
by oceans. The continents began to move apart.
The landscape was lush and tropical. There were
many more giant trees, tree ferns and ferns
covering the land. The weather was warm and
tropical. There was more geologic activity with
the formation of volcanoes.
Cretaceous Was the time when there were more
different types of dinosaurs alive on the earth.
The continents had drifted further apart and
geologic activity increased. Flowering plants
first appeared during the Cretaceous period.

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6
Dino Quiz
Take this quiz to test your Dino-knowledge!
7

COOL ACTIVITIES!
Just click and play!
Build-A-Dino Help Big Al Grow into and adult
dino! Dinosaur Memory Egg Hunt
8
Check out these cool books at the school library!