Lesson 2 of 9
Growing and moving
Show on a big screenA tulsi plant by a window leans, or bends, toward light. Is that moving?
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Step 1 of 4
- Day 0: a short, straight stem.
- Day 5: taller, leaning a little.
- Day 10: taller again, leaning more.
- Growing counts. Leaning is moving too.
The rule
Yes, a plant that leans toward light is moving.
Growing means getting bigger over time. It can be slow.
Moving means changing position. It is more than walking.
A living thing grows from within (inside itself), using food. A crystal (like a grain of salt) only adds material from outside.
Example
The touch-me-not plant, or lajwanti, folds shut within seconds of a touch. A plant can move fast too.
Try the lab to finish this lesson.