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A LANDFORMS ADVENTURE
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A VISIT TO KITT PEAK
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AMELIA EARHART A LEGEND IN FLIGHT
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AMERICAN FOOTBALL
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ARTHUR'S BAD-NEWS DAY
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AWESOME ANTS
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BENCHMARK PASSAGES & RUNNING RECORDS
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BUILDING TUNNELS
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CASTLES
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CESAR CHAVEZ MIGRANT HERO
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CHILI PEPPER POWDER SURPRISE
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CHINA
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CHINZAEMON THE SILENT
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COLOR BLINDNESS
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CORAL REEFS
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DIA DE LOS MUERTOS
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EARTHQUAKES, VOLCANOES, AND TSUNAMIS
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ELEVENTEEN
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EMILY
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EXTREME ANIMALS
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FAMOUS FIRST LADIES
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FIREWORKS
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FIRST DAY OF SCHOOL
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GANDHI
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GOLIATH BIRD-EATING SPIDERS GIANT ARACHNIDS
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GOOD FOR THURGOOD!
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HATTIE IN THE ATTIC
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HIS BIGGEST FAN
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HORSESHOES AREN'T JUST FOR GOOD LUCK
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HOW GLOOSKAP FOUND SUMMER
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JACK-O'-LANTERNS
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JACKIE ROBINSON
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KOMODO DRAGONS GIANT REPTILES
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LANDFILLS WHAT A LOAD OF GARBAGE!
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LOST CITIES
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MARCH MADNESS
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MERMAID IN A TEACUP
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MIKE VAN ZEE, SPECIAL OLYMPIAN
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MORTY AND THE OATMEAL BABYSITTER
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MORTY AND THE SUITCASE CAPER
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MORTY AND THE TEACHER'S APPLES
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MORTY AND THE WALKATHON
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MORTY'S SWIM SURPRISE
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MY EARTH DAY BIRTHDAY
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MYSTERY AT CAMP WHITE CLOUD
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ON EAGLE RIVER
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PLIGHT OF THE POLAR BEAR
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PUFFINS
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QUEEN ELIZABETH I
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RAMSES II
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RETURN OF THE JAGUAR
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ROBIN HOOD AND THE KING
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ROUTE 66
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SALMON A LINK IN THE FOOD CHAIN
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SHARKS
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SINKHOLE SCIENCE
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SLITHERY SNAKES
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SOCCER
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SPEEDIER THAN A METEOR
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SPRAK!
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STRANGE PLANTS
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SUMMER OLYMPICS EVENTS
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SWEET POTATO CHALLENGE
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THE ANT IN THE PHOTOGRAPH
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THE BUFFALO SOLDIERS
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THE CASTAWAY PINES
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THE CAVE OF THE LOST
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THE EUROVISION SONG CONTEST!
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THE FOOTPRINT
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THE GOLDEN FLUTE
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THE HOLLOW
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THE KID WHO COULDN'T SAVE
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THE KINGDOM OF HAPPINESS
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THE LEGEND OF NESSIE
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THE LITTLE FIR TREE
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THE NEW SOCCER BALL
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THE THREE-R PLAN
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THE WEATHERBOT WARNING
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THROUGH A MICROSCOPE
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VINCENT'S BEDROOM
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WALKING IN ROMAN FOOTSTEPS
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WHO LIKES LEMONADE
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WHY ABE LINCOLN GREW A BEARD
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YO-YO MA
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ZOOKEEPING
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