Gathering Materials from the Environment
Gathering Materials from the Environment is a Grade 5 science concept from Amplify Science (California) examining how organisms — both plants and animals — obtain the raw materials they need to build their bodies and sustain life. Plants gather carbon dioxide from air and water from soil; animals gather nutrients by eating other organisms. This concept, covered across Chapters 1-3, reinforces conservation of matter in living systems: all the matter in a living organism came from the environment through gathering and eating.
Key Concepts
To keep growing, a plant must constantly gather materials from its surroundings. This happens in two places. Underground, the root system works to pull in water. Above ground, tiny openings on the leaves open up to let in air.
Through these openings, the plant takes in carbon dioxide . By collecting these materials from the soil and the atmosphere, the plant gathers the raw components it needs to make food.
Common Questions
How do organisms get the materials they need to grow?
Organisms get materials they need through different methods: plants absorb water from soil, take in carbon dioxide from air, and absorb minerals through roots; animals eat other organisms to obtain the organic molecules they need for growth and energy. All matter in living things originally came from the environment.
How do plants gather materials from the environment?
Plants gather materials through their roots, which absorb water and dissolved minerals from soil, and through their leaves, which take in carbon dioxide from the air. Using sunlight as energy, they combine these raw materials in photosynthesis to produce sugar — their primary building material.
How do animals gather materials from the environment?
Animals gather materials by eating — consuming plants, other animals, or both. When an animal eats, it breaks down the food and absorbs the molecules it needs. These molecules are then used to build new body tissues, provide energy, and carry out biological functions.
Where did the matter in a tree originally come from?
Most of a tree's mass comes from carbon dioxide in the air, not from the soil as many people assume. Through photosynthesis, trees convert CO₂ and water into sugar, which they use to build wood, leaves, and roots. The carbon in the wood came from atmospheric CO₂.
When do 5th graders learn about how organisms gather materials?
Gathering materials from the environment is covered in 5th grade science. Amplify Science California Grade 5 Chapters 1-3 investigate how different organisms — trees, jaguars, sloths — obtain and use the materials they need for growth and survival.
Is matter recycled between living things and the environment?
Yes, matter cycles continuously between living things and the environment. Animals exhale CO₂ that plants absorb; plants release oxygen that animals breathe; decomposers break down dead organisms and return nutrients to soil that plants absorb again. Matter is never created or destroyed in these cycles.
Which textbook covers how organisms gather materials for 5th grade?
Amplify Science (California) Grade 5 covers material gathering across Chapters 1-3, tracing how matter flows from the environment into living organisms through photosynthesis, eating, and absorption.