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acorn Plants 1
Spanish bellota
Vietnamese Trái sồi
Hmong txiv qhib
Cantonese
Korean
Haitian Creole glan
Arabic
Russian желудь
Tagalog bunga ng punong roble
Khmer µVáµÃT
An acorn is a nut that grows on an oak tree. The acorn nut is the fruit of the tree and contains an oak seed. Acorns are an important food source for animals in a forest. Animals such as squirrels, mice, pigs, deer, and many birds use acorns as a source of food. An acorn contains not only the seed of an oak tree but also food for when the tree begins to grow. The seed and fruit of an acorn are enclosed inside a hard shell that protects the acorn and preserves it until conditions are right for it to grow.
Additional Plants Cardsfruit (Plants 24), seed (Plants 46), tree (Plants 54)
Other Cardsbird (Vertebrates 8), pig (Vertebrates 54), deciduous forest (Ecology 6)
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dragonfly Invertebrates 16
A dragonfly is an insect with two pairs of long wings. Dragonflies have two large complex eyes at the front of their heads. Their excellent sense of sight allows them to catch and eat other insects while flying. To reproduce, dragonflies lay eggs in water. When the eggs hatch, the young dragonflies live in water for the first part of their lives as nymphs. A nymph will eat other aquatic insects, such as mosquito larvae. A dragonfly may live up to four years as a nymph. When its adult body develops, the dragonfly leaves the water by crawling up a plant stem. When its wings develop, it will fly away and live on land for the rest of its life, which lasts no more than two months.
Additional Invertebrates Cardsbutterfly (Invertebrates 8), mosquito (Invertebrates 26),moth (Invertebrates 27)
Other Cardswing (Vertebrates 74), carnivore (Ecology 4)
Spanish libélula
Vietnamese chuồn chuồn
Hmong kab qaus liv
Cantonese
Korean
Haitian Creole libelil
Arabic
Russian стрекоза
Tagalog tutubi
Khmer ATr«YÀªZ
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brain Humans 4
Card image is an artist’s rendering, not an actual photograph.
Span
ishce
rebr
o
Viet
nam
ese
não
Hm
ong
pajh
lwb
Cant
ones
e
Kore
an
Hai
tian
Creo
lesè
vo
Arab
ic
Russ
ian
мозг
Taga
log
utak
Khm
erB®ÀAu¡Á
The b
rain
is an
org
an fo
und
insid
e the
skul
l. Th
e bon
es o
f the
skul
l he
lp p
rote
ct th
e bra
in fr
om in
jury
. The
bra
in is
the m
ain
orga
n of
the
nerv
ous s
yste
m. I
t rec
eives
mes
sage
s fro
m al
l par
ts of
the b
ody.
The
brai
n in
terp
rets
thes
e mes
sage
s and
then
send
s mes
sage
s bac
k to
the
body
in re
spon
se. Y
our b
rain
cont
rols
proc
esse
s in
your
bod
y tha
t you
do
n’t th
ink
abou
t all
the t
ime,
such
as b
reat
hing
and
blin
king
. You
r br
ain
also
tells
you
when
you
are h
ungr
y or s
leepy
. An
adul
t hum
an
brai
n we
ighs
abou
t 3 p
ound
s (1.
4 kg
). A
baby
’s br
ain
keep
s gro
wing
in
size a
fter b
irth
until
the b
aby i
s abo
ut ei
ghte
en m
onth
s old
.
Additio
nal H
uman
s Ca
rds
baby
(Hum
ans 1
), ce
ll (H
uman
s 5),
skul
l (Hu
man
s 16)
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desert Ecology 7
Deserts are very dry places that receive less than 10 inches (25 cm) of precipitation each year. Organisms that live in the desert have adaptations to help them survive with very little water. A cactus plant can store water in its stem. Its leaves are reduced to spines, which decrease water loss and protect the cactus from being eaten by animals. Many desert animals are active at night when the air is cooler. This adaptation helps them conserve water by avoiding being out during the hottest times of the day.
Not all deserts are hot. Because it receives only about 2 inches (5 cm) of precipitation each year, Antarctica is considered a desert.
Additional Ecology Cardsdeciduous forest (Ecology 6), grassland (Ecology 10), tundra (Ecology 20)
Other Cardscactus (Plants 11), scorpion (Invertebrates 30)
Spanish desierto
Vietnamese sa mạc
Hmong roob moj sab qhua
Cantonese
Korean
Haitian Creole dezè
Arabic
Russian пустыня
Tagalog disyerto
Khmer ¡Á À́Ä¡L¡T
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predator and prey Ecology 17
A predator is an organism that eats another organism. The prey is the organism the predator consumes. On this card, the cheetah is the predator and the gazelle is the prey. A lion is another example of a predator. A lion can have many different types of prey, including zebras and antelopes. An animal may be both predator and prey. For example, a snake might eat a mouse, making the snake a predator. When the snake is eaten by a hawk, the snake has become prey.
Organisms have developed many different types of defenses to avoid being preyed on. Defenses include body coloration to blend in with surroundings and production of poisons on the skin.
Additional Ecology Cardscamouflage (Ecology 3), carnivore (Ecology 4), food chain (Ecology 9)
Other Cardsant (Invertebrates 1), lion (Vertebrates 39), snake (Vertebrates 66),toad (Vertebrates 69), zebra (Vertebrates 76)
Spanish animal de rapiña y presa
Vietnamese thú ăn thịt và con mồi
Hmong tus tsiaj nrhiav nqaij noj thiab tus tsiaj uas tab tom yuav raug tom
Cantonese
Korean
Haitian Creole predatè ak pwa
Arabic
Russian хищник и жертва
Tagalog predator
Khmer àAªY ÃPâ äª ÃPâ T¢E ÃPâ µKÁ àP¬Â äª
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