Question

1. identify three environmental factors that may affect the rate of gas production

amount of sunlight
amount of soil
amount of carbon dioxide available
the amount of oxygen available
the amount of water available

experimental variables
when scientists set out to do an experiment, they first think about the variables that may affect their results. in an experiment, a variable is any condition that may cause a change in the system being studied.
some variables are measured quantitatively, like temperature, mass, height, or volume. other variables, like color, texture, or odor, are measured qualitatively.
the most important factor in a controlled experiment is that only one variable is changed at a time. the other variables are controlled or kept constant. this is called a controlled variable.
model 1 - photosynthesis in an aquatic plant
the diagram for model 1 illustrates a clipping of an aquatic plant in water.

1. what process is occurring in the plant clipping in model 1?
2. what gas is produced by the plant in model 1?
3. when is energy being released in the process recorded in part 2?
4. depending on the environment of the plant, how can the rate of gas production be increased in model 1?
5. with your group, create a list of environmental factors that may affect the rate of gas production in an experiment. they would become the variables in an experiment.

Explanation:

In photosynthesis, sunlight provides energy, carbon - dioxide is a reactant, and water is also essential. These factors can affect the rate of gas production (oxygen production during photosynthesis). Soil amount and oxygen availability are less directly related to the core process of photosynthesis gas - production compared to sunlight, carbon - dioxide, and water.

Answer:

amount of sunlight, amount of carbon dioxide available, the amount of water available