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Let's-Read-and-Find-Out Science books are correlated to two Stages: Stage 1 books explain simple and easily observable science concepts for preschool and kindergarten children. Stage 2 books explore more challenging concepts and include hand-on activities for children in the primary grades. Stage 1 Titles Reading Themes Reading Skills Grades Big Tracks, Little Tracks Stage 1 Animals; Nature compare and contrast; identify problems and solutions; understand cause and effect PreK-2 Animals in Winter Stage 1 Animals; Nature compare and contrast; identify problems and solutions; understand cause and effect PreK-2 Baby Whales Drink Milk Stage 1 Animals; Nature compare and contrast; understand cause and effect PreK-2 Fireflies in the Night Stage 1 Nature understand cause and effect PreK-2 From Caterpillar to Butterfly Stage 1 Change; Nature sequence events; understand cause and effect PreK-2 From Tadpole to Frog Stage 1 Animals; Nature compare and contrast; sequence events; understand cause and effect PreK-2 How a Seed Grows Stage 1 Nature understand cause and effect PreS-1 How Many Teeth? Stage 1 Change sequence events; understand cause and effect PreK-2 How to Be a Nature Detective Stage 1 Adventures; Nature categorize; draw conclusions PreK-2 I'm Growing! Stage 1 Change; Families compare and contrast; draw conclusions PreK-2 My Five Senses Stage 1 Observation compare and contrast PreS-1 A Nest Full of Eggs Stage 1 Animals; Change; Nature compare and contrast; understand cause and effect PreK-2 Sleep Is for Everyone Stage 1 Nature understand cause and effect PreK-2 Snow Is Falling Stage 1 Nature understand cause and effect PreK-2 Sounds All Around Stage 1 Animals; Nature identify problems and solutions; understand cause and effect PreK-2 Starfish Stage 1 Nature understand cause and effect PreK-2 What Color Is Camouflage? Stage 2 Animals; Nature categorize; understand cause and effect PreK-2 What Lives in a Shell? Stage 1 Animals; Nature categorize; compare and contrast PreK-2 What Makes a Shadow? Stage 1 Nature understand cause and effect PreK-2 What's Alive? Stage 1 Nature categorize PreK-2 What's It Like to Be a Fish? Stage 1 Animals; Nature understand cause and effect PreK-2 Where Are the Night Animals? Stage 1 Animals; Nature compare and contrast; understand cause and effect PreK-2 Stage 2 Titles Reading Themes Reading Skills Grades Ant Cities Stage 2 Explorations; In the Wild draw conclusions 3-5 Ant Cities Stage 2 Explorations; In the Wild draw conclusions 3-5 Archaeologists Dig For Clues Stage 2 Explorations; The Past draw conclusions; make predictions 3-5 Be a Friend to Trees Stage 2 Explorations; In the Wild understand cause and effect 3-5 Corn Is Maize Stage 2 The Past sequence events; understand cause and effect 3-5 Digging Up Dinosaurs Stage 1 Explorations; In the Wild; The Past compare and contrast; identify problems and solutions; understand cause and effect 3-5 Dinosaur Bones Stage 2 Explorations; In the Wild; The Past compare and contrast 3-5 Dinosaurs Are Different Stage 1 In the Wild; The Past compare and contrast 3-5 A Drop of Blood Stage 2 Explorations understand cause and effect 3-5 Ducks Don't Get Wet Stage 2 Explorations; In the Wild compare and contrast; understand cause and effect 3-5 Ears Are for Hearing Stage 2 Explorations understand cause and effect 3-5 Earthquakes Stage 2 Explorations; In the Wild understand cause and effect 3-5 Eclipse Stage 2 Explorations understand cause and effect 3-5 Elephant Families Stage 2 Explorations; In the Wild draw conclusions; understand cause and effect 3-5 Evolution Stage 2 Explorations; The Past evaluate fact and nonfact; sequence events 3-5 Falcons Nest on Skyscrapers Stage 2 In the Wild understand cause and effect 3-5 Feel the Wind Stage 2 Explorations; In the Wild understand cause and effect 3-5 Follow the Water from Brook to Ocean Stage 2 Explorations; In the Wild draw conclusions; understand cause and effect 3-5 Fossils Tell of Long Ago Stage 2 Explorations; In the Wild; The Past compare and contrast; understand cause and effect 3-5 Germs Make Me Sick! Stage 2 Explorations understand cause and effect 3-5 How Do Apples Grow? Stage 2 Explorations; In the Wild compare and contrast; understand cause and effect 3-5 How Do Birds Find Their Way? Stage 2 Explorations; In the Wild compare and contrast; understand cause and effect 3-5 How Mountains Are Made Stage 2 Explorations understand cause and effect 3-5 How We Learned the Earth Is Round Stage 2 Explorations; The Past evaluate fact and nonfact; evaluate fact and opinion; sequence events 3-5 Is There Life in Outer Space? Stage 2 Explorations draw conclusions; evaluate fact and nonfact 3-5 Milk From Cow to Carton Stage 2 Explorations sequence events; understand cause and effect 3-5 The Moon Seems to Change Stage 2 Explorations understand cause and effect 3-5 My Hands Stage 2 Explorations compare and contrast PreS-1 My Visit to the Dinosaurs Stage 2 Explorations compare and contrast 3-5 An Octopus Is Amazing Stage 2 Explorations; In the Wild understand cause and effect 3-5 Oil Spill! Stage 2 In the Wild identify problems and solutions; understand cause and effect 3-5 The Planets in Our Solar System Stage 2 Explorations compare and contrast 3-5 Rock Collecting Stage 2 Explorations compare and contrast 3-5 The Sky Is Full of Stars Stage 2 Explorations compare and contrast 3-5 Snakes Are Hunters Stage 2 In the Wild compare and contrast; understand cause and effect 3-5 Sunshine Makes the Seasons Stage 2 Explorations understand cause and effect 3-5 Tornado Alert Stage 2 Explorations understand cause and effect 3-5 Volcanoes Stage 2 Explorations understand cause and effect 3-5 What Happened to the Dinosaurs? Stage 2 Explorations identify problems and solutions; understand cause and effect 3-5 What Happens to a Hamburger Stage 2 Explorations sequence events; understand cause and effect 3-5 What Makes a Magnet? Stage 2 Explorations understand cause and effect 3-5 What Makes Day and Night Stage 2 Explorations understand cause and effect 3-5 What the Moon Is Like Stage 2 Explorations compare and contrast 3-5 What Will the Weather Be? Stage 2 Explorations understand cause and effect 3-5 Where Does the Garbage Go? Stage 2 Explorations sequence events; understand cause and effect 3-5 Who Eats What? Stage 2 In the Wild compare and contrast; understand cause and effect 3-5 Why Do Leaves Change Color? Stage 2 In the Wild compare and contrast; understand cause and effect 3-5 Why I Sneeze, Shiver, Hiccup, and Yawn Stage 2 Explorations compare and contrast; understand reflexes 5-9 You're Aboard Spaceship Earth Stage 2 Explorations understand cause and effect 3-5 Your Skin and Mine Stage 2 Explorations understand cause and effect 3-5 Zipping, Zapping, Zooming Bats Stage 2 Explorations; In the Wild understand cause and effect 3-5