Grade 1

• Unit A: Seeds Grow

  Chapter 1:

  Lesson 1: Seeds Grow

  Lesson 2: A Tree Is Alive and A Sugar Maple Tree

  Lesson 3: A Tree Is Alive and A Sugar Maple Tree

  Lesson 4: A Tree Is Alive and A Sugar Maple Tree

  Chapter 2:

  Lesson 1: Feed Me!

  Lesson 2: Tricky Animals

  Lesson 3: Feed Me!

• Unit B: Day and Night in the Desert

  Chapter 3:

  Lesson 1: Day and Night in the Desert

  Lesson 2: It's a Ball of Poop

  Lesson 3: Different Ways of Living

  Lesson 4: Swimming with the Pod

  Chapter 4:

  Lesson 1: Living Colors of a Coral Reef

  Lesson 2: Click and the Kids

  Lesson 3: Brrrr! Above the Tree Line!

• Unit C: Gifts of the Sun

  Chapter 5:

  Lesson 1: Meet a Meteorologist

  Lesson 2: Meet a Meteorologist

  Lesson 3: Gifts of the Sun

  Chapter 6:

  Lesson 1: A Winter Walk in the Woods

  Lesson 2: Gifts of the Sun

  Lesson 3: Yo Wants to Know

  Lesson 4: Yo Wants to Know

• Unit D: Made of Mud

  Chapter 7:

  Lesson 1: Eye, Magnifying Glass, Microscope

  Lesson 2: The Weather Glass

  Lesson 3: Blowing in the Wind

  Chapter 8:

  Lesson 1: Gifts of the Sun

  Lesson 2: Day and Night in the Desert

  Lesson 3: It's a Ball of Poop

  Lesson 4: Fossils: Clues to Earth Long Ago

Grade 2

• Unit A: Brrr! Above the Tree Line!

  Chapter 1:

  Lesson 1: Little School on the Prairie

  Lesson 2: Little School on the Prairie

  Lesson 3: A Garden in the City

  Lesson 4: Little School on the Prairie

  Chapter 2:

  Lesson 1: Mystery of the Disappearing Mouse

  Lesson 2: Dino Eggs…And What's Inside

  Lesson 3: Wild in the City

  Lesson 4: If You Could Fly Like a Bird

• Unit B: Trees in the City

  Chapter 3:

  Lesson 1: Backyard Treasures

  Lesson 2: Marvin and Friends

  Lesson 3: Made of Mud

  Lesson 4: Dino Eggs…And What's Inside

  Chapter 4:

  Lesson 1: Backyard Treasures

  Lesson 2: You Don't Need Dirt!

  Lesson 3: Made of Mud

  Lesson 4: Above the Earth

• Unit C: The Palm Springs Aerial Tramway

  Chapter 5:

  Lesson 1: Ask Jimmy & the Bug

  Lesson 2: Ask Jimmy & the Bug

  Chapter 6:

  Lesson 1: Ask Jimmy & the Bug

  Lesson 2: Blowing in the Wind

  Lesson 3: Flying Stones

  Lesson 4: Flying Stones

• Unit D: Magnetic Fluids

  Chapter 7:

  Lesson 1: Magnetic Fluids

  Lesson 2: Lost? Not If You're a Lobster

  Lesson 3: Magnetic Fluids

  Chapter 8:

  Lesson 1: Music Comes from Everywhere

  Lesson 2: Herring Hellos

  Lesson 3: Echolocation Echo…What?

Grade 3

• Unit A: The Birch Aquarium

  Chapter 1:

  Lesson 1: Would You Survive in Antarctica?

  Lesson 2: Deserts—What and Where

  Lesson 3: Diving to Rescue Coral Reefs

  Chapter 2:

  Lesson 1: Alien Invasion

  Lesson 2: Diving to Rescue Coral Reefs

  Chapter 3:

  Lesson 1: First in Flight?

  Lesson 2: First in Flight?

  Lesson 3: Becoming the Horse

• Unit B: Science Scoops: Pluto: A Planet or Not?

  Chapter 4:

  Lesson 1: Blasting into Space

  Lesson 2: Ask Jimmy & the Bug

  Lesson 3: Ask Jimmy & the Bug

  Lesson 4: Science Scoops: Pluto: A Planet or Not?

  Chapter 5:

  Lesson 1: Dozens of Cousins, Trillions of Stars

  Lesson 2: Tidal Power…It's Out of This World!

  Lesson 3: Exploring Space

  Lesson 4: Click and the Kids

• Unit C: Building the Golden Gate Bridge

  Chapter 6:

  Lesson 1: Ask Jimmy & the Bug

  Lesson 2: Snowballs in Summer

  Lesson 3: Snowballs in Summer

  Chapter 7:

  Lesson 1: Ask Jimmy & the Bug

  Lesson 2: Ask Jimmy & the Bug

• Unit D: Neighborhood Electric Vehicles

  Chapter 8:

  Lesson 1: Sailing to the Stars

  Lesson 2: Sailing to the Stars

  Lesson 3: Harpo's World

  Lesson 4: Surf's Up in San Diego

  Chapter 9:

  Lesson 1: What is Lightning?

  Lesson 2: Ask Jimmy & the Bug

  Lesson 3: Science Scoops: And…Reflections of Earth's Climate

Grade 4

• Unit A: What's the Fuss About Frogs?

  Chapter 1:

  Lesson 1: Life Below Zero

  Lesson 2: Life Below Zero

  Lesson 3: A Solution Takes Wing

  Lesson 4: Life Below Zero

  Chapter 2:

  Lesson 1: Close Encounters in the Rainforest

  Lesson 2: A Solution Takes Wing

  Lesson 3: What's the Fuss About Frogs?

• Unit B: Biofuels: The Ultimate in Recycling

  Chapter 3:

  Lesson 1: Close Encounters in the Rainforest

  Lesson 2: Science Scoops: Crime Scene Insects

  Lesson 3: Diggin' Dirt

  Chapter 4:

  Lesson 1: Science Scoops: Crime Scene Insects

  Lesson 2: What's the Fuss About Frogs?

  Lesson 3: What's So Special about HEVs?

• Unit C: The Caverns of Calaveras County

  Chapter 5:

  Lesson 1: Fire and Ice

  Lesson 2: Fire and Ice

  Lesson 3: Science Scoops: Rocking the Earth

  Lesson 4: Diggin' Dirt

  Chapter 6:

  Lesson 1: Loma Prieta, Landslides, and Liquefaction

  Lesson 2: Is Hawaii the Result of a Big Bang?

  Lesson 3: Loma Prieta, Landslides, and Liquefaction

  Chapter 7:

  Lesson 1: Other Worlds, Other Storms

  Lesson 2: Floods

  Lesson 3: Glaciers: Incredible Frozen Time Machines

• Unit D: Power Bites: Personal Power

  Chapter 8:

  Lesson 1: The Electric Kiss

  Lesson 2: Power Bites: Personal Power

  Lesson 3: Power Bites: Personal Power

  Chapter 9:

  Lesson 1: How Maglevs Work

  Lesson 2: Do Shark's Have a Sixth Sense?

  Lesson 3: How Maglevs Work

  Lesson 4: S'more Energy, Please!

Grade 5

• Unit A: The California Condor

  Chapter 1:

  Lesson 1: Borrowing from Biology—Nature's Nanotechnology

  Lesson 2: Mitochondria: Powerhouses of the Cell

  Lesson 3: Borrowing from Biology—Nature's Nanotechnology

  Chapter 2:

  Lesson 1: One Ugly Plant!

  Lesson 2: Pipelines and Pressure: The Story of Maple Syrup

  Chapter 3:

  Lesson 1: Taking the Ultimate Plunge

  Lesson 2: Burning Carbs

  Lesson 3: Jurassic Barf

• Unit B: Oceans of Energy

  Chapter 4:

  Lesson 1: Echoes of Greenland

  Lesson 2: Make It Snow!

  Lesson 3: Generous Geothermals

  Chapter 5:

  Lesson 1: Glaciers: Incredible Frozen Time Machines

  Lesson 2: Eye on Hurricanes

  Lesson 3: Eye on Hurricanes

• Unit C: Daniel Gropper Gauges the Weather

  Chapter 6:

  Lesson 1: Going Up: Life in the Death Zone

  Lesson 2: Science Scoops: Killer Dust!

  Lesson 3: The Worst Weather, the Best Place

  Lesson 4: Daniel Gropper Gauges the Weather

  Chapter 7:

  Lesson 1: The Great Eight

  Lesson 2: Spacecraft Snaps Record Image

  Lesson 3: Spacecraft Snaps Record Image

  Lesson 4: A Lumpy Planet

• Unit D: The Worst Weather, the Best Place

  Chapter 8:

  Lesson 1: Science Scoops: Slip-Sliding Away…No More

  Lesson 2: Science Scoops: The World's Tiniest Thermometer

  Lesson 3: Iceland: Where Hydrogen Energy Is Hot!

  Chapter 9:

  Lesson 1: Science Scoops: Slip-Sliding Away…No More

  Lesson 2: A Big Fat Italian Dinner

  Lesson 3: Animal Angles: Frogs' Friends

  Chapter 10:

  Lesson 1: The Great Ice-Skating Competition

  Lesson 2: Pipelines and Pressure: The Story of Maple Syrup

  Lesson 3: The Great Ice-Skating Competition

  Lesson 4: Freezing Physics

Grade 6

• Unit A: Lassen Volcanic National Park

  Chapter 1:

  Lesson 1: Science Scoops: A Huge Eruption on the Sun

  Lesson 2: A Lumpy Planet

  Lesson 3: Science Scoops: What's in Vesuvius' Belly

  Chapter 2:

  Lesson 1: Science Scoops: Mount Everest Tops Itself

  Lesson 2: The San Joaquin River

  Lesson 3: Amazing Migrations

• Unit B: From the Ground Up

  Chapter 3:

  Lesson 1: Volcano!

  Lesson 2: Making Mountains

  Lesson 3: The Big One

  Lesson 4: Making Mountains

  Chapter 4:

  Lesson 1: Science Scoops: What's in Vesuvius' Belly

  Lesson 2: The San Joaquin River

  Lesson 3: From the Ground Up

  Lesson 4: Science Scoops: What's in Vesuvius' Belly

• Unit C: Riding the Electromagnetic Wave

  Chapter 5:

  Lesson 1: Riding the Electromagnetic Wave

  Lesson 2: Science Scoops: Scientists Turn Down the Heat

  Lesson 3: Science Scoops: Killer Dust!

  Chapter 6:

  Lesson 1: Eye on Hurricanes

  Lesson 2: What Really Causes the Ice Ages?

  Lesson 3: The San Joaquin River

• Unit D: The Soil…It's Alive!

  Chapter 7:

  Lesson 1: Animal Angles: Frogs' Friends

  Lesson 2: Squeezed to the Extreme

  Lesson 3: What Really Causes the Ice Ages?

  Chapter 8:

  Lesson 1: Toad-ally Out of Control!

  Lesson 2: Animal Angles: Frogs' Friends

  Lesson 3: The Soil…It's Alive!

  Chapter 9:

  Lesson 1: Animal Angles: Prairie Dogs Under Pressure

  Lesson 2: Science Scoops: Kilimanjaro Snowcap May Melt Soon

  Lesson 3: Animal Angles: Prairie Dogs Under Pressure

• Unit E: To Drill or Not to Drill

  Chapter 10:

  Lesson 1: Power Bites: Celestial “Black Out”

  Lesson 2: To Drill or Not to Drill

  Lesson 3: Oceans of Energy

  Chapter 11:

  Lesson 1: Fowl Fuel

  Lesson 2: Fowl Fuel