DIN

OS

AU

RH

AN

DB

OO

K

Igu

an

od

on

Stego

sau

ru

s

Br

ach

iosa

ur

us

Pa

ra

sau

ro

lop

hu

s

Ap

ato

sau

ru

s

Spin

os

au

ru

s

The hollow, bony crest on Parasaurolophus’ head w

as likely used to make loud sounds to

comm

unicate.

With a length of 50 feet (15 m

eters), Spinosaurus w

as the largest known land predator, but it also

swam

in rivers to catch fish. Its name com

es from

the large “sail” on its back made of bony spines

and skin.

Apatosaurus had a very long tail, w

hich it may have snapped like a

whip for self-defense or to m

ake a loud sound.

Brachiosaurus weighed as

much as 20 elephants and

was about eight stories tall. It

had nostrils on the top of its head, above its eyes.

When Iguanodon’s skeleton w

as first discovered, the thum

b spike was thought

to be a horn on its nose.

Stegosaurus was a plant eater and had spikes

on its tail that it probably used for defense.

Pte

ro

sau

rTr

icer

ato

ps

Vel

oci

ra

pto

r

Pa

chy

cep

ha

losa

ur

us

Velo

cira

ptor

use

d la

rge,

cur

ved

claw

s on

eac

h ba

ck fo

ot to

hol

d an

d ki

ll th

e sm

all r

eptil

es a

nd

dino

saur

s th

at it

ate

. The

re is

evi

denc

e it

was

co

vere

d in

feat

hers

, but

it d

id n

ot fl

y.

Pter

osau

rs a

re c

ousi

ns to

din

osau

rs. M

ost

know

n Pt

eros

aurs

live

d ne

ar o

cean

s an

d sw

oope

d ov

er th

e w

ater

to c

atch

fish

.Tr

icer

atop

s ha

d th

ree

larg

e ho

rns

for d

efen

se,

but t

here

is e

vide

nce

that

Tyr

anno

saur

us R

ex

som

etim

es a

te T

ricer

atop

s.

Anky

losa

urus

had

hug

e pl

ates

of b

one

embe

dded

into

its

skin

and

a b

ony

club

on

its ta

il to

kee

p aw

ay p

reda

tors

.

Tyra

nnos

auru

s R

ex’s

jaw

was

4 fe

et lo

ng

(1.2

met

ers)

. It i

s be

lieve

d to

hav

e th

e m

ost

pow

erfu

l bite

of a

ny la

nd a

nim

al e

ver.

Pach

ycep

halo

saur

us’ s

kull

was

up

to 9

inch

es

(23

cent

imet

ers)

thic

k an

d m

ay h

ave

been

use

d to

hea

d-bu

tt ot

her a

nim

als.

Visi

t m

attm

celli

gott.

com

fo

r mor

e fu

n ac

tiviti

es a

nd in

form

atio

n on

th

e M

ad S

cien

tist A

cade

my

book

s!

Tyr

an

no

sau

ru

s R

exA

nk

ylo

sau

ru

s

MAD

SCI

ENTI

STACADEM

Y

Fold in half side to side. Be sure to line up corners exactly. Fold back and forth to make a good crease.

Then unfold the paper again.Put the print of the handbook in front of you like this.

Now fold the right side into middle line, then unfold again...

... and fold the left side into middle line. Then unfold again.

Then unfold the paper once more.

Fold in half side to side again, with the printed side out. Now cut along the black line, but be sure to stop at the black dot!

Fold book shut with the cover on the front. Check that the corners of the pages line up and adjust as needed. Press firmly to crease the spine of the book.

Keep the book from unfolding with a staple in the middle crease. Or, use a glue stick on the insides of the back to back pages to keep them from separating.

Unfold the paper. You will have a sort of “mouth” opening in the paper.

Now comes the magic! Fold in half top to bottom and let the “mouth” open into a diamond shape.

Push the two sides of the paper toward the center to form a “plus” shape.

Next, fold in half top to bottom. Be sure to line up corners exactly. Fold back and forth to make a good crease.

M a d S c i e n t i s t A c a d e m y H a n d b o o k F o l d i n g I n s t r u c t i o n sIt’s easy! With just four folds and one cut, you can make your own handbook.

1 4

85

9

6

10

13 14

7

11 12

2 3

You will now have eight divisions on the paper, which will be the pages of your book.

Now use your book to solve fun activities available at mattmcelligott.com!The Mad Scientist Academy books are by Matthew McElligott and published by Random House.