Support an argument that plants get the materials they need for growth chiefly from air and water.
From Molecules to Organisms: Structures and Processes
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Use observations to describe patterns of what plants and animals (including humans) need to survive.
Organisms have basic needs. For example, animals need air, water, and food; plants require air, water, nutrients, and light.
Plan and conduct an investigation to determine if plants need sunlight and water to grow.
Use a model to represent the relationship between the needs of different plants or animals (including humans) and the places they live.
Defend the position that plants obtain materials needed for growth primarily from air and water.