Common misconceptions › Class 7 › Science › Life Processes in Plants Class 7 Science · Chapter 10 · NCERT (gecu110)
Life Processes in Plants: common misconceptions
See the tempting mistake students make in Life Processes in Plants, why it feels right at first glance, and a worked visual example that shows the right idea.
Worked visual “If your child says…” (8) Teach & practice The tempting mistake & worked visual Do plants get their food from the soil? Wrong
Roots absorb the plant’s food from the soil.
Why it feels right. Water and nutrients enter through the roots, so food seems to come from there too.
Right
Plants use light energy to make sugars from carbon dioxide and water.
Worked example
Root pathway
Soil → Water and mineral ions → Roots
Sugar pathway
Light + CO₂ + water → Leaves → Sugars
Roots deliver water and mineral ions. Leaves make sugars using light, water and carbon dioxide. In a typical green plant, roots take up water and mineral ions. Leaves use water and carbon dioxide to make sugars in the light. If your child says… (8 concept checks in this chapter)
As you work through Life Processes in Plants , listen for these everyday misunderstandings and use the prompt alongside each one.
If your child says…
“It only grows if it gets taller.”
Ask together What would counting leaves reveal that measuring height misses? What’s true Height measures only one part of growth. If your child says…
“Green leaves make food even in darkness.”
Ask together What energy could chlorophyll capture inside that dark cupboard? What’s true Food found after darkness may have been made earlier. If your child says…
“Iodine finds the green pigment.”
Ask together What did iodine find in the potato? What’s true Blue-black colour indicates starch, not chlorophyll. If your child says…
“Plants give out carbon dioxide when making food.”
Ask together Which gas supplies carbon that becomes part of the food? What’s true The arrows describe food-making, not every gas movement in a plant. If your child says…
“Only leaves can make food.”
Ask together What does a green stem have that helps leaves capture light? What’s true Other parts containing chlorophyll can also photosynthesise under suitable conditions. If your child says…
“Leaf pores only let carbon dioxide in.”
Ask together How could oxygen enter a leaf that needs to release food energy? What’s true Stomata allow gas exchange for both food-making and respiration. If your child says…
“Everything inside plants travels upwards.”
Ask together How would roots get leaf-made food if nothing could travel down? What’s true Roots receive food made in leaves. If your child says…
“Only green leaves release energy from food.”
Ask together Where could a sprouting seed get energy before green leaves appear? What’s true Living roots and germinating seeds also break down food for energy. Use this chapter three ways Previous chapter Life Processes in Animals Next chapter Light: Shadows and Reflections
In the app, your child answers a short check-in with confidence taps, and you see which of these misunderstandings showed up—and which ones are gone.
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