Iowa Public Televison curated an extensive list of resources that align with standards and target specific grade levels. 

Standard/Skill Age Range Show Episodes Games
Motion & Stability: Forces & Interactions 2-5 Sid the Science Kid The Wind Did It Lets Fly
      Sid's Super Kick  
      Ignatz's Inertia  
  2-5 Curious George Ski Monkey Feed Gnocchi
      Castle Keep  
      What Goes Up  
    Dinosaur Train   River Run
        Hungry Hungry Herbivore
    The Cat in the Hat Knows a Lot About That Lets Go Fly a Kite Migration Adventure
        Clatter Clang Island
    Nature Cat Breezy Rider Nature Cat's Adventure
    Fetch! With Ruff Ruffman   Dish it Out
    Wild Kratts   Go Cheetah Go
Energy 2-5 Sid the Science Kid Special Sunny Dad Day  
  2-5 Curious George Something New Under the Sun  
         
  3-8 Ready Jet Go! Just the Right Distance from the Sun  
Molecules to Organisms: Structure & Processes 2-5 Sid the Science Kid Home Tweet Home  
  2-5 Curious George George's Home for Pigeons Zoomazing
      Squirrel For a Day Flower Garden
      Sprout Outing Animal Scrapbook
      For the Birds  
  2-5 Dinosaur Train Shiny Can't Sleep Field Guide
      Tiny Loves Flowers  
      Tiny's Garden  
    The Cat in the Hat Knows a Lot About That Bathtime Flower Finder
      Nest Best Thing  
    Plum Landing   Plum's Creature Connector
        Mangroovin
        Can You Dig It?
    Wild Kratts Koala Balloon Caracal Leap
        Croc Hatch
        Slither Run
        Ride on Remora
Earth Systems 2-5 Sid the Science Kid Sid's Rainy Play Date Weather Surprise
      Sid the Weather Man Weather Wheel
  2-5 Curious George Something New Under the Sun  
      George Buys a Kite  
      Curious George vs Winter  
      Curious George Gets Winded  
  2-5 Dinosaur Train Hurricane at Pteranadon Terrace  
      Dad's Day Out  
    The Cat in the Hat Knows a Lot About That Puddle Puzzle  
      Spring and Summer  
      Fall and Winter  
Engineering Design 2-5 Sid the Science Kid The Broken Wheel  
      Sid's Amazing Invention  
      The Tree House  
  2-5 Curious George Curious George Door Man Pogo-a-Gogo
      Unbalanced Day at the beach
      Monkey Stagehand Feed Gnocchi
      Jungle Gym On the Job
      George and Allie's Automated Car Wash Build a Bot
  2-5 Dinosaur Train   Station Race
        Rail Rally
    The Cat in the Hat Knows a Lot About That Fantastic Flour Marbleous Marvel Coaster
      Paper Chase The Great Space Chase
      Marvelous Marbles Corn Maze Craze
        Invention Engine
    Nature Cat   Racing Rapids
    Fetch! With Ruff Ruffman That Doesn't Float my Boat Monumental Mini Golf
      I'll Ruff and I'll Ruff and I'll Blow Your House Down Dish it Out
        Robot Rover
        Whoahler Coaster
    Ready Jet Go! Backyard Moon Base Jet's Rocket Ship Creator
        Sean's Rescue Quest
    Wild Kratts Build It Beaver Aviva's Power Suit Maker
      Secrets of the Spider's Web Creature Mobile
Waves and Their Applications 2-5 Sid the Science Kid Too Much Noise Say What?
      Let There Be Light  
  2-5 Curious George Curious George and the Invisible Sound  
      In the Dark  
      Chasing Rainbows  
      George and Marco Sound It Out  
      Curious George Sounds Off  
      Train of Light  
  2-5 Dinosaur Train Solar Train  
    The Cat in the Hat Knows a Lot About That Batty for Bats The Great Nocturnal Hat Hunt
      Hear Here  
    Ready Jet Go! Sounds Abound  
    Wild Kratts   Dolphin Dive
        Going Batty
Healthy Body / Heredity 2-5 Sid the Science Kid A Brush with Teeth Sid Says
      Must See TV Super Duper Antibodies
      The Big Sneeze  
      Special Mom Day Meal  
      I Have Muscles Where?  
      Sid's Amazing Lungs  
      How Did My Dog Do That?  
  2-5 Curious George A Monkey's Duckling  
      The Inside Story  
      Toot Toot Tootsie Goodbye  
  2-5 Dinosaur Train Dinosaur Poop  
      T Rex Teeth  
      Hatching Party  
      The Nursery Car  
    The Cat in the Hat Knows a Lot About That When I Grow Up  
      Amazing Eyes  
      Sneezy Riders  
      Babies  
      Teeny Weeny Adventure  
      Rumbly Tumbly  
    Wild Kratts Mom of a Croc  
      A Huge Orange Problem  
      Shadow of Black Jaguar  
Earth's Place in the Universe 2-5 Curious George George Sees Stars  
  2-5 Dinosaur Train Big Pond Pumpkin Patch  
      Stargazing on the Night Train  
      Erma and the Conductor  
    Cat in the Hat No Night Today  
      Planet Name Game  
    Nature Cat Astronauts  
      Stargazers  
    Ready Jet Go! Mission to the Moon Jet's Planet Pinball
      Just the Right Distance from the Sun Sean's Rescue Quest
      Night of a Bazillion Stars Mindy's Constellation Exploration
Matter and Interactions 2-5 Sid the Science Kid My Ice Pops Mystery Lunch Box
      The Perfect Pancake Sorting Box
      The Itchy Tag Collection Jar
  2-5 Curious George Curious George Takes a Job Mix and Paint
      Curious George and the Missing Piece  
      Curious George and the Giant Thumb  
      No Knowing Gnocchi  
  2-5 Dinosaur Train The Big Mud Pit  
    The Cat in the Hat Knows a Lot About That Snowman's Land  
      Ice Is Nice  
      Bounce  
    Nature Cat There's Gold in Them Thar Hills  
Ecosystems & Habitats 2-5 Sid the Science Kid My Shrinking Shoes  
      Save the Stump  
  2-5 Curious George Creatures of the Night  
      Sea Monkey  
      Ice Station Monkey  
  2-5 Dinosaur Train T Rex Migration  
      Dinosaur Block Party  
      Where Have All the Lizards Gone?  
    The Cat in the Hat Knows a Lot About That Pick Your Friends  
      Digging the Deep  
      Help with Kelp  
    Nature Cat Swamp Thing  
      Where have all the Butterflies Gone?  
      Tide Pool Tough  
      Travelin's Seeds Seed Soaring
    Wild Kratts Honey Seekers Creature Math
      Food Chain Game  
      Flight of the Pollinators  
      Rainforest Stew  
      Rocket Jaw: Magician of the Reef  
    Plum Landing   Nature Changer
        Seed Racer
        Jungle Jeopardy
        Feed the Dingo
        Make a Mangrove
        Mountain Scramble
        Invaders!
Earth's Systems 2-5 Curious George Curious George in the Dark  
  2-5 Dinosaur Train Fossil Fred  
      Diamond Don  
      Under the Volcano  
      Adventure Camp: Canyon Hiking  
      Elmer Visits the Desert  
    Nature Cat Cave Conundrum  
      Daisy's Colossal Fossil  
      Stream and Shout  
    Ready Jet Go! How come the Moon has Craters?  
      The Grandest Canyon