🔬 4th Grade Science · Unit 5

Structures of Living Things

18 short narrated lessons in 3 chapters, each with pictures, a quiz with a hint and a second try, and an explanation for every answer.

Standards: 4-LS1-1

4th Grade Science · 7 units

What your child will learn

Roots: Holding On and Drinking UpExplain how roots anchor a plant and take in water and minerals.
Stems: The Plant's HighwayDescribe how stems hold a plant up and carry water and food.
Leaves: Food FactoriesExplain that leaves use sunlight to help the plant make its food.
Flowers, Fruits and SeedsDescribe how flowers, fruits and seeds help plants reproduce.
Plant Armor: Thorns, Bark and MoreIdentify plant structures such as thorns and bark that protect plants from harm.
Plant Parts Team Up: A Review ReviewReview how each plant structure helps the plant survive, grow and reproduce.

Built-In Protection: Shells, Scales, Spines and FurExplain how shells, scales, spines and fur protect animals.
Legs, Wings, Fins and TailsDescribe how legs, wings, fins and tails help animals move.
Beaks, Teeth and ClawsExplain how beaks, teeth and claws are shaped to help animals get food.
Staying Warm, Staying CoolDescribe how blubber, feathers and big ears help animals control body temperature.
Animal Body Tools: A Review ReviewReview how animals' outside structures help them protect themselves, move, eat and stay comfortable.

Bones: The Body's FrameExplain how bones form a skeleton that supports and protects an animal's body.
Thump, Thump: Your Heart at WorkDescribe how the heart pumps blood to carry food and oxygen around the body.
Lungs and Gills: Getting OxygenExplain how lungs and gills let animals take in oxygen.
From Lunch to Energy: DigestionDescribe how the stomach and intestines break down food for energy.
Teamwork Inside and OutArgue from evidence that inside and outside structures work together to help an animal survive.
Inside Parts Team Up: Chapter Review ReviewReview how internal structures like bones, heart, lungs and stomach work together to keep animals alive.
Unit 5 Test: Structures of Living ThingsShow what you learned in the whole unit (Plant structures, Animal outside structures, Animal inside structures) by answering mixed questions.

From the lesson “Roots: Holding On and Drinking Up”

What does it mean that roots anchor a plant?

Show the answer

They hold the plant firmly in place. Roots grip the soil and hold the plant firmly in place, so wind and rain cannot knock it over.

Hint kids see after a wrong try: “Think about why the weed would not budge.”

Narrated lessons, pictures and quizzes for every grade from K to 8. Works offline.