· rate of growth · Soil porosity and absorption - If soil absorbs too much water, the plant "smothers," because no air pockets can form around the roots. (i think)
If you test only one variable then you know that the difference in the experimental and control setup is that one independent variable. If you test more than one you will not know which one made the difference.
Ancient Sunlight is essentially Oil and fossil fuels.
Most of the sunlight is during summer but during winter it probably averages 3-4 hours of sunlight a day.
in summer
They really need five which are sunlight, air, water, nutrients, soil.
Maria and Elena want to answer the question of whether plants grow better with natural sunlight or artificial light by conducting an experiment.
In a science experiment, the independent variable is the factor that is deliberately changed or manipulated by the researcher to observe its effects. The dependent variable, on the other hand, is the outcome or response that is measured and is expected to change in response to the manipulation of the independent variable. For example, in an experiment testing the effect of sunlight on plant growth, the amount of sunlight (independent variable) is varied, while the plant growth (dependent variable) is measured.
No. Laser light is artificial light, but it is not sunlight.
Dependent variable is your data, independent variable is what you are testing. Ex. Sunlight would be the independent variable and a plants growth would be the dependent variable.
The independent variable in an experiment is the one that is manipulated in order to test a hypothesis. There will also be a control used in order to make sure that the variable is doing what it is supposed to.
The independent variable in an controlled experiment is what you are changing (for example, amount of water or sunlight a plant gets). The dependent variable changes because of the independent variable. Its the outcome of the independent variable.
A dependent variable is a factor in an experiment that is influenced by another factor. An example might help to clarify. You are performing an experiment in which you are observing how sunlight affects plant height. Plant height is the dependent variable because it is dependent upon how much sunlight the plant receives. Sunlight is an example of an independent variable. It is not influenced by anything in this experiment, but may be changed to observe its effect on the dependent variable. It is possible to have more than one dependent variable in an experiment, but only one independent variable.
An independent variable is a factor or condition in an experiment that is manipulated or changed by the researcher to observe its effect on a dependent variable. It is considered "independent" because its variation is not influenced by other variables in the study. For example, in a study examining the impact of different amounts of sunlight on plant growth, the amount of sunlight would be the independent variable.
sunlight
The independent variable is the one that is manipulated or controlled in an experiment to observe its effect on another variable, known as the dependent variable. It is often considered the cause in a cause-and-effect relationship. For example, in a study examining the effect of different amounts of sunlight on plant growth, the amount of sunlight would be the independent variable.
Sunlight because the artificial light doesn't allow the plant to photosynthesize better.
Aim of an experiment to show that starch is produced in the presence of sunlight