S2.1.4 For the adult
Light, water and plant health
What do light and water do to a plant?
What this chapter teaches
A seedling in the dark often grows tall, thin and pale, then dies, because it cannot make food without light. Too little water makes a plant droop. Too much leaves the roots without air, and they rot. Taller does not mean healthier.
Three questions to ask
There is no one right wording. Listen for the idea.
- A seedling in the dark is taller than one in the light. Is it doing better, and why?
- What would you see on a plant that has too little water?
- How can a plant be harmed by too much water when it needs water to live?
After the chapter, the learner can
- Compare plants grown with and without light
- Describe what too little or too much water does to a plant
What they copy into their notebook
A seedling in the dark grows tall, thin and pale, then dies. A plant in light is green, shorter and strong. Too little water makes a plant droop. Too much water rots the roots.