Bob created an experiment to test what plants need to survive. He believes plants only need water to live. In order to test his hypothesis, Bob planted two of the same types of plant. Only one received water and sunlight. While the other plant only received water. He measured the plants everyday for 2 weeks. At the end the plant that received water and sunlight had drown more than the plant only receiving water.
What is the independent variable?
What is the dependent variable?
What is a valid conclusion for this lab?
1. Plant receiving only water
2. Plant receiving water and sunlight
plant growth depends on light
when you vary the independent variable, light, the dependent variable , growth, changes.
I would conclude that the plant needs water and light.
Of course I assume they were both in the same soil with all essential nutrients.
The independent variable in this experiment is the presence or absence of sunlight.
The dependent variable is the growth or development of the plants.
A valid conclusion for this lab could be that plants require both water and sunlight to thrive and grow, as the plant that received water and sunlight had shown more growth compared to the plant that only received water.
The independent variable in this experiment is the different conditions in which the plants are placed. Specifically, it is the presence or absence of sunlight.
The dependent variable is the measurable outcome that is being observed and recorded in response to the independent variable. In this case, the dependent variable is the growth or health of the plants.
A valid conclusion for this lab could be that sunlight has a significant impact on the growth and health of plants, in addition to water. The fact that the plant receiving both water and sunlight grew more than the plant receiving only water suggests that both factors are necessary for optimal plant growth.