My class has been studying plants. We have 2 plant quads. One is called control and the other one is called experimental. Our group question was “Will a plant grow in rocks instead of soil?” Our hypothesis was ” If we plant a seed in rocks instead of soil it will not grow because the water will evaporate on the rocks. Also, The plant will not get nutrients that the soil has.
Here are my control plant “stats”. They got everything that they need like water, soil, sunlight, air and nutrients. They also got fertilizer pellets. They are 11 cm tall. They grow about half an inch a day. They are green and have 15 leaves so far. Some plants are drooping down, but most are pointing up. I can’t believe that my group’s plants has grown 11 cm! They are really good, unlike our experimental plants. But that is in the next paragraph.
Our experimental plants have not been growing at all. They are in rocks instead of soil. They got everything they need like water, sunlight, air and nutrients. They also got fertilizer pellets. But they got rocks instead of soil. They are obviously 0 cm and do not have a color. I think this is because the water evaporates on the rocks every time we water them. Also, the rocks do not have nutrients that soil does. If you want proof, look at the picture below.
So far, our hypothesis is correct. I wonder what will happen next?