Blog Post #2

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 control plants have been growing really well. They are 11 cm tall and they are green. They have 17 leaves.

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.

Our experimental plants have not been growing at all.

So far, our hypothesis is correct. I wonder what will happen next?

Plant Experiment #1

My class has been learning about plants. We had to come up with questions and pick one of them to test out. My experiment was “Will a plant grow up in rocks?” My hypothesis was that the plant would not grow because the rocks would dry up the water. Also, the soil has nutrients that rocks do not. So far my hypothesis.  For this experiment I had 2 plants. One was the control, meaning that we did everything that a plant would normally need. For example, the control plant got air, soil, water and sunlight. The other one was the experimental, which means that we put everything that a plant needs, but we put rocks instead of soil. I am comparing the height of the control and experimental.



After a week that the the plants have been growing, the control plant is 4 cm high. For my experimental plant, nothing has happened. I have 3 plants growing in each cell. The tallest plant is the height I said above, But all of my control plants are green. We have watered the control and experimental plants 5 drops daily. But they always get water from the bottom of the quad because there is a bin with a silky blanket inside. The wicks will suck the the water up and the roots will suck up the water from the soil. Every day the plant grows about an inch. I wonder what will happen next! The experimental, as I said before is not growing. I wonder why?