This 250-word informational reading passage is designed for Grade 4 students and aligns with NGSS standard 4-LS1-1 (LS1.A: Structure and Function). Students explore how internal plant structures work together to help plants survive, grow, and reproduce. The passage explains transport tubes that move water and nutrients, leaf cells that capture sunlight to make food, flower parts that produce seeds, and seed structures that protect baby plants. Through clear, age-appropriate language and relatable examples, students build foundational understanding of how structure relates to function in living organisms. The passage includes bolded vocabulary terms with immediate definitions, helping students develop scientific literacy. Audio integration supports diverse learners, allowing students to read along while listening. This capstone passage brings together multiple concepts about plant internal structures, helping students argue that without these specialized parts, plants could not survive. The content prepares students for hands-on investigations and class discussions about plant biology. Activities include comprehension questions, writing prompts, and graphic organizers that reinforce understanding of structure-function relationships in plants. This resource supports NGSS Disciplinary Core Ideas and provides scaffolded learning experiences for all students.
Written by Workybooks TeamPublished by Workybooks
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Internal tubes transport vital water and food throughout the plant.
Plants have special parts inside them that help them stay alive. These internal structures—parts you cannot always see from the outside—work together to help plants survive, grow, and make new plants.
One important internal structure is the transport tubes. These tiny tubes run through the stem like straws. They carry water from the roots up to the leaves and move food from the leaves to other parts of the plant. Without transport tubes, water and food could not reach where they are needed, and the plant would die.
Inside the leaves are special leaf cells that capture energy from sunlight. These cells use the sunlight, along with water and air, to make food for the plant. This process gives the plant energy to grow. Without leaf cells making food, the plant would starve.
Flowers have internal parts that help plants reproduce. The flower parts work together to make seeds. Seeds contain baby plants and stored food. Each seed has protective coverings and a tiny plant inside. These seed structures keep the baby plant safe until it is ready to grow.
All of these internal structures are necessary for plant survival. Without transport tubes, leaf cells, flower parts, and seed structures, plants could not get food and water, make energy, or create the next generation. Each structure has an important job that helps the plant live.
Interesting Fact: A single sunflower can produce up to 2,000 seeds, and each seed has everything a new sunflower plant needs to start growing!
What do transport tubes carry?
Water and foodOnly sunlightOnly airSeeds and flowers
Where are leaf cells located?
Inside the rootsInside the leavesInside the flowersInside the seeds
What do flower parts produce?
WaterSunlightSeedsAir
Why do plants need leaf cells?
To make seedsTo make food using sunlightTo carry waterTo protect roots
What would happen without transport tubes?
The plant would grow fasterThe plant would make more seedsWater could not reach the leavesThe plant would get more sunlight
How do seed structures help plants?
They make sunlightThey carry waterThey protect the baby plantThey capture air