How do some plants grow up with water only for the beginning of their life

Question

I often see those timelapse videos of various seed placed in a wet tissue starting to grow roots and then put at the top of a water container, growing quite a lot (like developing leaves and stuff) before being put in an actual pot of dirt.
Where do those plants get the energy and stuff to grow up if all they have is water ? I’ve spent my whole life growing things in dirt directly and it works perfectly, I had no idea you could do water only…

In: 1

Answer 1

plants get their energy from light. they can draw nutrients from the soil, but their main source of energy is the sun. they do photosynthesis to turn light into sugar.