What are the experimental, constant, independent, dependent and controlled variables in this situation?
You have a few too many variables for this to be considered a “good” experiment. You should only have one variable, so you can show cause and effect. For example, you have two plants that you classified as “unhealthy”. But why were they? Was it because of how often they were watered? How much water they got at each watering? The amount of light each got? Some combination of these factors? What you SHOULD have done, is to have chosen just one variable – amount of water, how often watered, or how much light exposure – and this would be your independent variable. The independent variable is always the one YOU change. How well each plant did (healthy, unhealthy, dead) or the amount it grew (change in height) would have been the dependent variable. The dependent variable always DEPENDS on the independent variable – better conditions = better growth or survival; poor conditions = poor growth or survival. Everything else would have been the same for each plant ( and include temperature, soil,
