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REAL LIFE EXAMPLE Since dinosaurs roamed the earth a long, long time ago, paleontologists use exponents to describe how long ago they lived. Dinosaurs lived in the Mesozoic Era = Triassic Period, Jurassic Period, and Cretaceous Period. To describe their age, paleontologists need exponential notation because it is easier to use powers of ten for large numbers!
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DINOSAURS By: Caroline Sangvai REAL LIFE EXAMPLE Since dinosaurs
roamed the earth a long, long time ago,paleontologists use
exponents to describe how long ago theylived. Dinosaurs lived in
the Mesozoic Era= Triassic Period, JurassicPeriod, and Cretaceous
Period. To describe their age, paleontologists need
exponentialnotation because it is easier to use powers of ten for
largenumbers! TRIASSIC PERIOD Dinosaurs lived throughout the
Mesozoic Erawhich began 245million years ago! The era is divided
into 3 periods. The first Period is the Triassic Period. The
Triassic Period was about 245 MILLION years ago!So inexponential
notation, it would be 2.45 x 108. Can you see howwriting in powers
of ten, like 108, is easier than writing 100,000,000and
245,000,000? This is a Coelophysis; it lived in the Triassic period
JURASSIC PERIOD After the Triassic Period ended, the Jurassic
Period began. The Jurassic Period was about 208 MILLION years ago!
In exponential notation 208,000,000 is 2.08 x 108. This is again a
super easy technique! This is a Mamenchisaurus, it lived in the
Jurassic Period.Its neck was 46 ft. long, or in exponential
notation 4.6 x 101. CRETACEOUS PERIOD The Cretaceous Period begins
after the Jurassic Period. It is alsothe final period of the
Mesozoic Era. It began 146 million years ago or 1.46 x 108 years
ago.It ended65 million years ago, or 6.5 x 107! By the end of this
period dinosaurs were now known as extinct.More things started
appearing like flowers, animals,andHumans. This is a Tyrannosaurus
Rex, it lived in the Cretaceous Period. It was known as the king of
dinosaurs and dominated the period. COMPARING DINOSAURS, HUMANS AND
EXPONENTS
The Mesozoic Era began 245 million years ago and then ended
65million years ago. In exponential notation this is 2.85 x 108 and
6.5 x 107 years. Humans first appeared 100,000 or 1.0 x 105 years
ago Creature How many years ago did they first appear? How many
years after beginning of Mesozoic Era Triassic Dinosaurs 2.45x108 0
years, Triassic Period starts the Mesozoic Era Jurassic Dinosaurs
2.08x108 About the same as Triassic since both are 108 Cretaceous
Dinosaurs 4.6x107 About 10 times as many years after Humans 1X105
About 1000 times as many years after or 103 CONCLUSION Exponential
notation makes it easier to use large numbers
Since dinosaurs lived millions of years ago, their age can bestated
in exponential notation Exponential notation makes a lot of sense
when studyingevents that occurred a long time ago. I enjoy working
with powers of 10! REFERENCES
http://www.factmonster.com/ipka/A0878252.html
https://en.wikipedia.org/wiki/Mesozoic